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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.

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: B
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.

New input: Article: I had been rather proud of myself when my friends and family got the ticket, whether it was for speeding, parking or stop sign violations . It was something that happened to others. But last Friday I joined _ . I was asked to do a new project last week. On Friday morning on my way to work, I suddenly remembered that I had spent the past six weeks without considering that I had a week's vacation planned during that time. I was very disappointed with myself for not remembering it. The truth is that I was not paying enough attention to my driving and I did not come to a complete stop at the stop sign in front of a school. I was so distracted that I didn't even notice I had a policeman on my tail with his lights flashing. Finally I looked in my mirror and caught on. The policeman was rude and took my papers. Fortunately, I had everything up to date and since I had never had a ticket before, there was nothing for him to do but write me a ticket. While I was sitting there in the seat of "shame", I felt bad. If I had been that distracted and a child had run onto the road, perhaps I would have not reacted as well as I could have. It was a wake-up call. People at work asked me if I tried to talk my way out of it . Frankly, it never occurred to me. I felt sorry. Now I no longer have a clean driving record. Please be careful out there, as a moment's distraction can lead to tragedy.
Question: What is this passage mainly about?
Options: (A) The writer's most unforgettable experience. (B) How the writer got her first ticket. (C) An accident caused by the writer. (D) Why the writer is always so careful.
Solution:
B