In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.
One example: Article: Homework can put you in a bad mood , 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
Solution is here: B
Explanation: It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment. So, B is the correct answer.

Now, solve this: Article: I often write about the bad state of television these days, but recently my mom told me about a story she saw on 60 Minutesthat was inspiring, educational, and entertaining for the whole family. I went to the show's website to see for myself. My mom was right. At a time when even Barbara Walters says she's really bored with celebrities interviews, this one will not disappoint. It's the story of Derek Paravicini, a 30-year-old who was born three months early, physically disabled (he can't button his own shirt), blind, and severely autistic . Yet, through total luck and coincidence, his family discovered that Derek had a remarkable musical talent when he was three. Derek can hear any musical composition one time and play it perfectly on the piano. That's right. He only has to hear it once. Even more unbelievable, his brain, like a computer, can keep many songs that he can immediately repeat when asked. But his talent isn't limited to just learning things by heart. Derek is a true musical genius and artist who plays beautifully in a wide range of styles and can make his own music. With his talent, Derek has raised millions of dollars putting on charity concerts. He also donates his time to senior centers where he acts as a human jukebox machine, taking requests from senior citizens who haven't heard their favorite songs for decades. As it turns out, Derek loves people and his extraordinary talent has been the key to unlocking his personality and social development. If you want to inspire your family, pop some popcorn and sit everyone down to watch this excellent piece of journalism. If your kids are like mine, it will cause a great family discussion about the definition of "disability" and the extraordinary ability of the human brain and spirit. It may even give you the perfect answer the next time your child says he or she "can't" do something. Now that's priceless. Who says there's nothing good on TV?
Question: How does Derek help the elderly?
Options: (A) By buying them a jukebox machine. (B) By building senior centers for them. (C) By singing the old songs they ask for. (D) By playing the piano to raise money for them.
Solution:
C