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: English is spoken as a first language by most people in the USA, Britain, Australia, New Zealand, Ireland and Canada. However, English is spoken all over the world. It is the main language in over 60 countries, such as India, Singapore and in many of the Caribbean and Pacific islands. In those places English is often a second language. English is also as an important international language in many other countries, like China and Japan. People in these countries use it for business, and travelers to these countries use English when they get there. Other people may learn English because they enjoy reading books in English, listening to British or American music or watching American films. English has changed a lot these years and still goes on changing. It is no longer right to talk about British English or American English if the speaker doesn't come from those countries. People in Japan or Korea, for example, may use the American spelling but may not sound like Americans. English will be the most widely used language in the world in the 21stcentury. This language no longer belongs to British, American or Australian speakers. It belongs to anyone who can use this language. After you leave school, you will almost certainly need it. 
 Question: In how many countries is English spoken as a first language in the world? 
 Options: (A) Five. (B) Four. (C) Three. (D) Six. 
 Asnwer: D
Solution:
Yes