In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.

[EX Q]: Article: Despite the fact that it has never been seen almost everyone is familiar with the legendary unicorn . Descriptions of unicorns have been found dating from ancient times. The great philosopher Aristotle theorized that there were two types of unicorn--- the so-called Indian Ass and the Oryx, a kind of antelope. Unicorns are often used in the logo of a noble family, town council or university as their special sign. Even Scotland is represented by a unicorn. According to the legend, anyone attempting to catch a unicorn had to be extremely careful as it was very fierce and dangerous. A clever trick suggested by unicorn-trappers, in order to catch this amazing animal without being hurt by its horn, was for the hunter to stand in front of a tree and then to move quickly behind it as the unicorn dashed angrily. Hopefully, the creature could then be caught when its horn was stuck in the tree. When hollowed out and used as a drinking-cup, the unicorn's horn was said to have the power to offer protection against person. It was believed that nobody could be harmed-by drinking the contents of a unicorn's horn. Right up until the French Revolution in 1789, the French court was said to have used cups made of "unicorn" horn in order to protect the king. In addition, the horn was said to have medicinal value, so much so that it could be sold for more than ten times the price of the same weight of gold. What, then, was "unicorn" horn? We know at times the rhino  was confused with this legendary creature. A drinking-cup supposedly made of "unicorn" horn was discovered to be made of the horn of a rhino. 
 Question: Which of the following is TRUE of the unicorn? 
 Options: (A) It was not historically recorded (B) Its horn was first used in France (C) It was similar to the Indian Ass and the Oryx (D) It could be the symbol of a university 
 Asnwer: D
[EX A]: Yes

[EX Q]: Article: When people talk about Golden Age in Leadville, Horace Austin Warner Tabor and his second wife, Elizabeth McCourt must be included. Their story is becoming one of the legends of the Old West. H.A.W.Tabor was a school teacher in Vermont. With his first wife and two children he left Vermont in 1855 to settle in Kansas. Perhaps he was attracted by rumors of fortunes to be made in Colorado mines. A few years later he moved west to the small Colorado mining camp known as California Gulch, which he later renamed Leadville when he became its leading citizen. "Great deposits of lead are sure to be found here."he said. As it turned out, it was silver, not lead, that was to make Leadville's fortune and wealth. Tabor knew little about mining himself, so he opened a general store selling everything from boots to salt, flour, and tobacco. He often "grubstook" miners, in other words, to supply them with food and supplies, or"grub", while they looked for more. In return he would get a share in the mine if one was discovered. He did this for several years,but nobody he helped ever found anything of value. Finally one day in the year 1878, so the story goes, two miners came               in               and asked for "grub".Tabor had decided to quit supplying it because he had lost too much money that way. They were persistent, however, and Tabor was too busy to argue with them, " Oh help yourself. One more time won't make any difference," He said and went on selling shoes and hats to other customers. The two miners took $17 worth of supplies, in return for which they gave Tabor a one-third interest in their findings. They picked a barren place on the mountain side and began to dig. After nine days they struck a rich amount of silver. Tabor bought the shares of the other two men, and so the mine belonged to him alone. This mine, known as the "Pittsburgh Mine,"made $300 000 for Tabor in return for his $17 investment.                Later Tabor bought the Matchless Mine on another barren hillside just outside the town for $117 000. This turned out to be even more successful than the Pittsburgh, earning $35 000 worth of silver per day at one time. Leadville grew. Tabor became its first mayor. 
 Question: According to the passage, why was Tabor able to achieve great success in Leadville? 
 Options: (A) His wise decisions helped him achieve goals. (B) He knew miners there were poor. (C) He succeeded quite by accident. (D) His second wife helped him a lot. 
 Asnwer: B
[EX A]: No

[EX Q]: Article: Wild elephants live in herds of 10 to about 50. The leader is usually a female. A herd can go through a forest quietly. It travels in a single line. It goes about 6 miles an hour. When frightened, it may run at about 25 miles an hour. When they reach water, elephants swim across. They are great swimmers.     Elephants eat grass, leaves, small branches, and bark. They particularly like the tender leaves on the top of trees. How do they get these leaves? They use their heads to knock trees down. They can easily knock down a 30-foot tree. Elephants also eat berries, mangoes, coconuts, corn, and sugar cane. They love salt. A wild male adult eats 500 to 600 pounds of food a day.     Many people want to find the graveyards   of elephants. There is a strong belief that such graveyards exist. Here is why. Bones and tusks of dead elephants have almost never been found. Searches have been made in forests. Grassy plains have been searched too. But neither bones nor tusks are found. Elephants don't live forever. Where are their bones? They don't just bury themselves. Here is one belief. When an elephant gets sick or old, it instinctively knows death is near. It leaves the herd. It goes off to a secret graveyard. The place is known only to elephants, and perhaps other animals, but not to humans. Obviously, such a graveyard would be filled with tusks. These were once very valuable. The objective of explorers was to find this "gold" mine. This graveyard belief may be a truth or a myth. But it is romantic. It would be nice if it were true. 
 Question: An elephant usually travels at a speed of   _   per hour. 
 Options: (A) around 6 miles (B) around 25 miles (C) no more than 6 miles (D) more than 25 miles 
 Asnwer: D
[EX A]:
No

