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: A rare butterfly has been discovered in Britain for the first time in 60 years,having moved from Eastern Europe.The only previous record of a wild yellow-legged Tortoiseshell in Britain was in 1953,when it was seen just once in Sevenoaks,Kent.Several weeks ago,there were already four confirmed sightings,along the East coast in Norfolk,Suffolk and Kent,and six further reports of the butterfly in coastal areas. Conservationists are very excited about the    sightings,which are rare in the butterfly world. The butterflies are thought to have flown on easterly winds across Europe in the last few weeks.The large and colourful insect mainly lives in Eastern Europe.In recent years,it has spread into Scandinavia and its number increases rapidly during warm weather.Also known as the Scarce Tortoiseshell,it has an orange and blue colour and is about one third bigger than our own Small Tortoiseshell. Butterfly Conservation was starting its annual Big Butterfly Count,a yearly survey of the butterflies across the nation.Sir David Attenborough,President of the charity,said,"The UK is a nation of amateur naturalists and we have a proud tradition of celebrating and studying our wildlife.By taking part in the Big Butterfly Count this summer,you can contribute to discovering the fantastic butterflies and other wildlife that share your garden,parks and    countryside."He added,"Butterflies fought back last year after a terrible 2012 but despite this,butterfly numbers were still below average.Three quarters of the UK's butterflies are in decline and one third are in danger of dying out.This is bad news for the UK's birds,bees,bats and other wildlife. 
 Question: These rare butterflies usually live in  _  . 
 Options: (A) Eastern Europe (B) Norfolk,Suffolk and Kent (C) coastal areas (D) Sevenoaks,Kent 
 Asnwer: D
Solution:
No