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: Big messaging apps abroad While WeChat is China's biggest mobile messaging app , there are many equivalent apps in other countries that offer similar features. WhatsApp (US) Users: more than 300 million Platforms: Android, iOS, Windows Phone, BlackBerry Features: text chats, pushtotalk, file sharing, location sharing With more than 300 million active users, WhatsApp is one of WeChat's biggest competitors. Developed by two exYahoo employees in 2009, WhatsApp originally focused on text chats, but on Aug. 6 it also started pushtotalk service. It's noted for its accessibility, ease of use and the absence of adverts. The service is free for the first year, after which D|S0.99 (6.06 yuan) is charged for a oneyear subscription. Kakao Talk (South Korea) Users: more than 100 million Platforms: Android, iOS, Windows Phone, BlackBerry and Bada (an operating system developed by Samsung) Features: text chats, group chats, pushtotalk, group calls, file sharing With more than 100 million users in more than 230 countries, Kakao Talk is a multiplatform texting application that allows users to send and receive messages for free. With Kakao Talk, users can message each other oneonone or in group chats with unlimited numbers of friends. You can also choose from more than 250 animated emoticons and share them with friends. Line (Japan) Users: more than 200 million Platforms: Android, iOS, Windows Phone, BlackBerry and PC Features: text chats, group chats, pushtotalk, file sharing, location sharing, gaming, stickers Line tops the list of the most downloaded free apps in 52 countries. Apart from text and voice messaging, Line provides its users with more than 250 original stickers and emoticons to buy from its own shop. In the first quarter of 2013 alone, it made D|S17 million just from stickers. The popular app also allows friends to battle each other in the Line games.
Question: Compared with the other two apps, which of the following features makes Line stand out?
Options: (A) Group mobile games. (B) Free stickers and emoticons. (C) Free download of the app. (D) Text and group chats.
Asnwer: C
Solution:
No