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.

Let me give you an 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
The answer to this example can be: B
Here is why: 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.

OK. solve this:
Article: The story of "Who Moved My Cheese?"was created by Dr. Spencer Johnson to help him deal with a difficult change in his life. It showed him how to take his changing situation seriously but not take himself so seriously. When his friends noticed how much better life had become for him, and asked why, Dr.Johnson shared his "Cheese" story. Many later said how greatly the story had helped them to keep their sense of humor, to change, and to gain something better, too. Twenty years after the story was created, "Who Moved My Cheese?" was finally published. It soon became a No.1 international best seller, with one million hardcover copies in print within the first sixteen months and over ten million copies within the next two years. Some critics do not understand why so many people find the book so valuable. They say the story is simple enough for a child to understand, and it insults their intelligence. Some even fear it suggests that people should mindlessly accept unnecessary changes forced upon them by others, although that is not in the story. The author said that both the fans and the critics are "right" in their own way. It is not what is in the story of "Who Moved My Cheese?" but how you understand it and apply it to your own situation that gives it value. Hopefully the way you understand the story of "Who Moved My Cheese?" and the way you put it into action in your life will help you find and enjoy the "New Cheese" you deserve . (278words)
Question: Some people don't like the book because they think that _ .
Options: (A) it is too simple for adults to read (B) the author aims to insult them (C) there are many wrong ideas in it (D) the author's intelligence is too high
Answer:
A