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: Most young people enjoy some forms of physical activities. It may be walking, cycling or swimming, or in winter, skating or skiing. It may be a game of some kind, football, hockey, golf, or tennis, it may be mountaineering. Those who have a passion for climbing high and difficult mountains are often looked upon with astonishment. Why are men and women willing to suffer cold and hardship, and to take risks on high mountaineering? This astonishment is caused probably by the difference between mountaineering and other forms of activity to which men give their leisure. Mountaineering is a sport and not a game. There are no manmade rules, as there are for such game as golf and football. There are, of course, rules of a different kind, which would be dangerous to ignore, but it is this freedom from manmade rules that makes mountaineering attractive to many people. Those who climb mountains are free to use their own methods. If we compare mountaineering with other more familiar sports, we might think that one big difference is that mountaineering is not a "game". We would be mistaken in this assumption. There are, it is true, no "matches" between "teams" of climbers, but when climbers are on a rock face linked by a rope on which their lives may depend, there is obviously teamwork. The mountain climber knows that he may have to fight forces that are stronger and more powerful than man. He has to fight the forces of nature. His sport requires high mental and physical capacities. A mountain climber continues to improve in skill year after year. A skier is probably past his prime by the age of thirty, and most international tennis champions are in their early twenties. But it is not unusual for a man of fifty or sixty to climb the highest mountains in the Alps. They may take more time than younger men, but they probably climb with more skill and less wasted effort, and they certainly experience enjoyment.
Question: Mountaineering is a sport which involves all the following things EXCEPT _ .
Options: (A) hardship (B) comfort (C) physical risk (D) cold
Asnwer: D
[EX A]: No

[EX Q]: Article: Thomas Jefferson, the third president of the United States, was a good and tireless writer, and he wrote The Declaration of Independence. There is much we can learn from him. Here are some of the things he said and wrote: Go and see. Jefferson believed that a free man obtains knowledge from many sources besides books, and personal investigation is important as well. Judge for yourself. Jefferson refused to accept other people's opinions without careful thought. "Neither believe nor reject anything," he wrote to his nephew. Learn from everyone. Jefferson once visited the French nobleman, Lafayette, and said to him, "You must go into the people's home as I have done ,look into their cooking pots and eat their bread. If you will only do this, you may find out why people are dissatisfied. " Do what you believe is right. In a free country, there will always be conflicting ideas, and this is a source of strength. It is not unquestioning agreement but conflict that keeps freedom alive. Though Jefferson was for many years the object of strong criticism, he never answered his critics. He expressed his philosophy, "There are two sides to every question. If you take one side with decision and act on it with effect, those who take the other side will of course resent your actions. " Trust the future and trust the young. Jefferson felt that the present should never be chained to customs which have lost their usefulness. "The earth belongs to the living generation. " He didn't fear new ideas, nor did he fear the future. "How much pain has been caused by evils which have never happened?" he remarked,"I expect the best, not the worst. "
Question: The author mentioned Jefferson's visit to Lafayette to show _ .
Options: (A) Jefferson was dissatisfied with Lafayette (B) Jefferson had a close relationship with his people (C) Jefferson was a great American president (D) Jefferson valued the importance of learning from others
Asnwer: D
[EX A]: Yes

[EX Q]: Article: An astronomer is making a case for launching pop singer Justin Bieber into suborbital space aboard a private rocket ship. The idea is not to rid the world of the Canadian teenager -- he would come back down to Earth eventually, after all -- but rather to help jump-start the emerging suborbital spaceflight industry. It would generate a lot of public interest, which would help commercial spaceflight pick up some much-needed momentum, said Seth Shostak, senior astronomer at the Search for Extraterrestrial Intelligence (SETI) Institute in Mountain View, California. "If there's more interest, there are more customers. If there are more customers, there's more technical development. It's a positive feedback loop, and obviously that's good." Such missions would return to Earth without completing a full lap around the planet. Instead, the flights would hit the edge of space about 62 miles (100 kilometers) above Earth, experience a few minutes of weightlessness, then re-enter the atmosphere and land back at a spaceport. None of these firms are ready to fly customers yet, but some are getting close. For instance, Virgin Galactic hopes to begin powered test flights of its SpaceShipTwo vehicle later this year, with commercial operations perhaps beginning in 2013 or 2014. It is SpaceShipTwo that reportedly grabbed the attention of Beyonce and Jay-Z. Virgin Galactic has collected deposits from nearly 500 customers willing to pay $200,000 for a ride aboard SpaceShipTwo, and both Virgin and XCOR have inked deals to fly scientists and their experiments on research flights. So a suborbital market already exists -- but Shostak is thinking about ways to make it grow. A celebrity launch isn't Shostak's only idea. Suborbital firms should also promote their activities aggressively via social media, Shostak said, and they should make sure their spaceships are bristling with cameras both inside and out, to give the public dramatic views of every mission. Some observers view commercial suborbital spaceflight as a potentially transformative industry, saying it could serve as a stepping stone to the exploration and exploitation of space on an unprecedented scale. While the industry's success is far from assured, Shostak offered some reason for optimism: The American public remains keen on space.
Question: Why may Justin Bieber be sent into suborbital space?
Options: (A) To show his bravery and make him a role model for teenagers. (B) To arouse the American public's interest. (C) To help reform the spaceflight industry. (D) To film an advertisement about space.
Asnwer: C
[EX A]:
No