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: Is it possible to persuade mankind to live without war? War is an ancient institution,-which has existed for at least six thousand years.It was always bad and usually foolish, but in the past human race managed to live with it.Modern inventiveness has changed this.Either man will end war, or war will end man.For the present, it is nuclear weapons that cause the most serious danger, but bacteriological or chemical weapons may, before Iong, offer an even greater threat.If we succeed in ending nuclear weapons, our work will not be done.It will never be done until we have succeeded in ending war.To do  _ , we need to persuade mankind to look upon international questions in a new way, not as contests of force, in which the victory goes to the side which is most skillful in kiting people, but by agreement with principles of law.It is not easy to, change very old mental habits, but this is what must be attempted. There are those who say that the adoption of this or that ideology(,)would prevent war.I believe this to be a big error.All ideologies are based upon dogmatic statements that are, at best, doubtful, and at worst, totally false.Their adherents (,)  believe in them so fanatically that they are willing to go to war in support of them. The movement of world opinion during the past few years has been very largely such as we can welcome.It has become a commonplace that nuclear war must be avoided.Of course very difficult problems remain in the world, but the spirit in which they are being approached is a better one than it was some years ago.It has begun to be thought, even by the powerful men who decide whether we shall live or die, that negotiations should reach agreements even if both sides do not find these agreements wholly satisfactory.It has begun to be understood that the important conflict nowadays is not between different countries, but between man and the atom bomb. 
 Question: In the sentence "To do this, we need to persuade mankind" (Para l), "this" refers to  _ 
 Options: (A) abolish war (B) improve weapons (C) solve international problems (D) live a peaceful life 
 Asnwer: A
Solution:
Yes