In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.

Q: Article: With America's national debt continuing to climb, Congress is constantly debating ways to save money. The Dollar Coin Alliance, a lobbying group, says billions could be saved if dollar coins were used instead of paper bills. But many people won't use them. The U.S. government tried to push dollar coins again in recent years, but then suspended almost all production in 2011. American likes paper dollars, but Jim Kolbe, co-chairman of the Dollar Coin Alliance, thinks switching to the coin is worth it. "The coin does cost more to produce, roughly on the neighborhood of 17 cents versus the 5 or 6 cents that a paper dollar costs to produce," he said. "However, the coin lasts 35 years, and it's made of mostly recycled metals, and the paper has to be produced from new materials, and we shred 3 billion of those every year because they wear out." For years, the former Arizona congressman has been pushing legislation that would prop up the dollar coin by phasing out the greenback -- a move that has met resistance from both politicians and the public. But today, he said, _ and a recent poll indicates 61 percent of Americans like the idea. "When they learn of the savings that can be involved with this, they will support the idea of substituting the coin for the paper dollar," he said. Major savings Kolbe points to a study by the Government Accountability Office, which investigates how the government spends taxpayer dollars. The GAO estimates taxpayers would save more than $4 billion over 30 years, and that figure could be much higher. That appeals to taxpayer Christy Thompson, who said, "I'd probably say, yes, we need to do it." But plenty of people aren't convinced, including Kim Doering of Alexandria, Virginia. "It's easier to carry the paper bill than a bunch of coins. They're louder; they're heavier in your pocket," she said. Washington, D.C. restaurant owner Sue Fouladi doesn't like the idea of having more dollar coins in her cash register. "It's very inconvenient," she said. "If I don't have a choice, then I'll do it, but I'll be a very unhappy person." Adding to the problem is that the gold- and silver-colored metal coins are about the same size as the 25-cent quarter. Robert Blecker, an economics professor at American University in Washington, says the dollar coins should be a different size and thickness. "And if we can design a dollar coin that's not so big and bulky, probably Americans would like it better," he added. But that doesn't bother college student Emily Sturgill. "Sometimes they fit into your pocket easily and you don't have to worry about them slipping out, like a dollar bill would if you brought your keys or your phone out," she said. 
 Question: Which of the following is the advantage of dollar coins according to the passage? 
 Options: (A) They cost less than paper bills . (B) They are convenient to carry. (C) They are not easy to wear out. (D) They are produced from new materials.

A: C
****
Q: Article: A new concept vehicle, Pod was introduced by Toyota and Sony at the Tokyo motor show. The car is intended as a four-wheeled friend. It aims to provide affection, sympathy and encouragement. Like a dog welcoming its master, the car sits up, wags its tail and acknowledges its owner's presence using hydraulics  and a multi-coloured LED display panel  across the front. While on the road, the car constantly monitors the driver's mood with pulse and sweat  sensors on the joystick . Cameras focused on the eyes keep watch for any sigh of _ . If a driver appears to be losing his or her cool, Pod will display warnings, play soft music and blow cold air at the face. Drivers are shaken awake with loud music and a shaking chair. To improve driving skills, Pod uses a comparison to score drivers, offer advice and rank all Pod owners. Toyota claims that the car will eventually be able to learn its owner's likes and dislikes by monitoring passenger conversations. If the car hears a favorite song being discussed, it will download the track from the Internet and play it without being asked. It will also recommend  restaurants that might suit the driver's taste and take photographs of passengers when they sound particularly happy. In keeping with the moodiness that is the car's main selling point, Pod expresses a form of road anger. If a driver brakes or swerves  suddenly, the LED panel shows an angry red and the tail rises at the back. Anger is one of the car's ten "emotional states". Another is sadness --- a blue front with tear-shaped lights seemingly dropping from headlights --- which appears after a flat tire or when gas is low. "We wanted to show that the cars can be cheerful and entertaining," said Yasunori Sakamoto, part of the Toyota design team. Mr Sakamoto said Toyota has no plans to put Pod on the market. Sad, really. 
 Question: According to the text, Pod can   _  . 
 Options: (A) rank the restaurant nearby (B) recommend a song to passenger (C) have a conversation with drivers (D) test the driver's driving skills

A: D
****
Q: Article: In modem society there is a great deal of argument about competition.Some value it highly,believing that it is responsible for social progress and prosperity.Others say that competition is bad, that it sets one person against another and that it leads to unfriendly relationship between people. I have taught many children who held the belief that their self-worth relied on how well they performed at tennis and other skills.For them,playing well and winning are often life-and-death affair. In their single-minded pursuit of success,the development of many other human qualities is sadly forgotten. However,while some seem to be lost in the desire to succeed,others take an opposite attitude.In a culture which values only the winner and pays no attention to the ordinary players,they strongly blame competition.Among _ are youngsters who have suffered under competitive pressures from their parents or society.Teaching these young people,I often observe in them a desire to fail.They seem to seek failure by not trying to win or achieve success .By not trying,they always have an excuse:"I may have lost,but it doesn't matter because I really didn't try.'' What is not usually admitted by themselves is the belief that if they had really tried and lost,that would mean a lot.Such a loss would be a measure of their worth. Clearly,this belief is the same as that of the true competitors who try to prove themselves.Both are based on the mistaken belief that one's self-respect relies on how well one performs in comparison with others.Both are afraid of not being valued.Only as this basic and often troublesome fear begins to dissolve can we discover a new meaning in competition. 
 Question: What does this passage mainly talk about? 
 Options: (A) Competition helps to set up self-respect. (B) Opinions about competition are different among people. (C) Competition is harmful to personal quality development. (D) Failures are necessary experiences in competition.

A:
B
****
