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.

Article: Oyster What is an Oyster card? Oyster is the easiest way to pay for journeys on the bus, Tube, tram, Docklands Light Railway (DLR), London Overground and National Rail journeys in London. You can store your travel cards, Bus&Tram Pass, season tickets and credit to pay for journeys as you go. Where to get an Oyster card? There are a number of ways for you to get an Oyster card: * At over 3,900 Oyster Ticket stops * At Tube and London Overground station ticket offices * At some National Rail stations * At London Travel information Centres * Online at tfl. gov. uk/oyster How to use an Oyster card? To pay the correct fare on the Tube, DLR, London Overground and National Rail services, you must always touch in on the yellow Oyster card reader at the start of your journey, and touch out at the end. If you don't, a maximum cash Oyster fare will be changed. When using the bus or tram, you must only touch in at the start, but not at the end of your journey. What happens if I don't visit London very often? Don't worry. Any pay as you go credit on your card will not expire  , so you can keep it for your next visit or lend it to a friend. Fares Traveling by Tube from Central London (Zone l)to Heathrow (Zone 6) Adult Oyster single fare PS 4. 20 Monday to Friday 06:30 - 09:30 and 16:00 -19:00 PS 2. 70 at all other times including public holidays Adult single cash fare PS 5.00 For further information, visit tfl.gov. uk /fares. 
 Question: Which of the following is TRUE about Oyster cards? 
 Options: (A) They are limited in use to the owners themselves. (B) On National Rail services you must touch them on the reader twice. (C) They are not suitable for those who don't visit London often. (D) Oyster card Tube fares cost more on public holidays than on weekdays.
B

Article: Do your parents smoke? Where do they smoke - outside, at work or at home when you are around? According to a survey published in the journal Academic Pediatrics, an alarming number of US parents are still risking their children's lives by smoking in front of them. Half of all children aged 6 to 19, even those with asthma  , have been exposed to second-hand smoke in the country, reported Reuters. "It's well known that smoking kills, but many smokers still don't realize the damage their smoke causes to those around them," Dame Sally, Chief Medical Officer for England, was quoted by the Independent as saying.  Tobacco smoke contains more than 7,000 chemicals, hundreds of which are poisonous. About 70 of them can cause cancer, not to mention other diseases, according to the US Centers for Disease Control and Prevention.  What's most scary is that there is no safe level of contact with second-hand smoke---even "low-level" exposure can be harmful to one's health. And "low-level" means when a parent or family member smokes in another room or even outside.  While second-hand smoke can be harmful to people of all ages, children face a greater risk than adults: they have smaller lungs; they breathe more quickly; and they have less developed immune  systems.  Also, young children have little control over their surroundings. Babies can't move to another room because the air is smoky. They depend on the adults in their lives to make sure that their environments are safe.  Recent years have seen second-hand smoke exposure drop---but for adults rather than kids, because policies have been started around the world to ban smoking in public places such as offices, bars and restaurants. However, "Children tend to be exposed to second-hand smoke in homes and cars, and these places are not included in most laws and policies," Amy Ferketich, a researcher at The Ohio State University, US, told Reuters. So what can we do to limit children's exposure to second-hand smoke? Parents should stop smoking for good. But if they can't, they should never smoke---or let others smoke---around their children. 
 Question: Which of the following is TRUE according to the article? 
 Options: (A) Half of the children ages 9 to 18 in the US have parents who smoked at home. (B) Most smokers in the US don't care about the effects that smoking can have on those around them. (C) Dame Sally believes many parents who smoke in front of their kids have no idea of the damage that they are doing. (D) Hundreds of chemicals contained in tobacco can cause cancer.
C

Article: Credit cards let people buy things now and pay for them over months or even years.But some people get deep into debt:Some banks have terms and charges that can make it harder for people to pay off that debt.In the United States,there are calls for stronger government supervision of the credit card industry. _ In 2004,Americans had about $800 billion in credit card debt.Now they own about $968 billion. Critics say banks made it too easy to get credit cards.But that may be changing.The crisis in the housing and credit they call markets is beginning to affect the credit card industry.More payments are late.Charges for late payments are a growing source of profit for banks.But late payments can also signal bad debts. The central bank,the Federal Reserve,says twothirds of American banks have recently reported tighter lending requirements.Many people report having their credit limits reduced without warning. Some lawmakers are concerned that cardholders do not have enough protections from what abusive policies.These include actions like raising interest rates because of an unrelated event.Also,banks may raise the chances of a late payment by changing monthly payment dates for credit cards. According to a survey,82% of Americans think credit cards provide a valuable service.But a majority,58%,say they do not trust credit card companies.And three out of four think the government should regulate the industry more closely.Three out of four people feel there is always some condition that makes a card less appealing than the company made in scared.And a little more than half say they have had a card that was not as good as they expected.But close to 80% say no one really reads the terms and conditions when they sign up for a credit card. 
 Question: Which of the following is NOT mentioned in the text? 
 Options: (A) Banks are making it harder for people to get credit cards. (B) Some people's credit limits have been reduced. (C) It is more difficult to borrow money from some banks. (D) Banks are receiving more charges from late payments.

A

