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.
One example: Article: Homework can put you in a badmood , and that might actually be a good thing. Researchers from the University of Plymouth in England doubted whether mood might affect the way kids learn. To find out the answer, they did two experiments with children. The first experiment tested 30 kids. Someshapes were hidden inside a different, larger picture. The kids had to find the small shapes while sitting in a room with either cheerful or sad music playing in the background. To test their mood, the scientists asked the kids to point to one of five faces, from happy to sad. Children who listened to cheerful music tended to point to the smiley faces while the others pointed to the unhappy ones. The researchers found that sad kids took at least a second less to find the small shapes. They also found an average of three or four more shapes. In the second experiment, 61 children watched one of two scenes from a film. One scene was happy, and the other was sad. Just like in the first experiment, kids who saw the sad scene acted better compared to the others. The researchers guessed that feeling down makes people more likely to focus on a problem or difficult situation. Not all scientists agree with them, however. Other studies argued that maybe, that cheerful music in the first experiment distracted kids from finding shapes. While scientists work on finding out the answers, it still might be wise to choose when to do your tasks according to your mood. After eating a delicious ice cream, for example, write an essay. 
 Question: Researchers did experiments on kids in order to find out _ . 
 Options: (A) how they really feel when they are learning (B) whether mood affects their learning ability (C) what methods are easy for kids to learn (D) the relationship between sadness and happiness 
 Answer: B
Solution is here: Yes
Explanation: It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment. Hence, B is the correct answer and output is Yes.

Now, solve this: Article: The curtain on the 2008 US presidential election finally rose last month as John McCain and Barack Obama were formally nominated   as candidates of the two major parties. This may be one of the hardest decisions voters have to make between two appealing candidates.  The big question for voters, as they face both an economic downturn and international threats, is: who will they elect? A young first-term senator promising change and new ideas, or a longtime senator with strong military experience and a reputation as a maverick  ?     American voters have never seen a candidate quite like Obama. He has a white mother from theprefix = st1 /USand a black father fromKenyawho left the family when Obama was very young. He spent part of his youth inIndonesia.     His supporters say Obama's childhood gives him the advantage to repair the recent damage done toAmerica's image abroad. His opponents focus on his inexperience, noting he hasn't finished his first term in the Senate.     However, McCain has a very different life story. He grew up in a Navy family and was a pilot during the Vietnam War in the 1960s. When Obama was in kindergarten in Indonesia, McCain's plane was shot down overVietnamand he became a prisoner of war. McCain could have been released if he _ Americabut he refused and so was held for five years. So in the end, the election may hinge on (...) several factors that are hard to judge: Will Obama's race matter to a significant number of voters? Will working-class whites who tended to support his primary opponent, Hillary Clinton, vote for Obama? And perhaps most important of all, will swing   voters be more drawn to Obama's vision   or to McCain's experience?  Whatever happens, one thing is clear: Whoever walks into the White House on January 20, 2009, will find enormous challenges waiting for him in the Oval Office, both at home and abroad. 
 Question: _   makes the result of the election hard to predict. 
 Options: (A) Whether working class whites care about Obama's inexperience (B) The economic trouble the country now faces (C) Who swing voters will finally decide to vote for (D) McCain's being too old to govern the country 
 Asnwer: C
Solution:
Yes