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.
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
Example solution: B
Example 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.

Problem: Article: Ray's wedding had gone off smoothly. Everyone seemed to have had a good time. A few people had too good a time; they went home with designated drivers. All evening, the gift table remained unguarded. Who would steal anything, Ray thought. He had never heard of such a thing happening at a wedding. But his best friend Aaron said there was a first time for everything. He walked out regularly from the inside festivities to check on the gift table, making sure no one doubtful was hanging around it. Ray and Julia went on a 3-week honeymoon to Italy right after the wedding. When they got back, they opened all the gifts and sent out thank-you notes. But there was one problem. A married couple that used to be good friends had obviously given nothing. This surprised Julia, because Walt and Mary said they were excited to be invited. And, they actually seemed to have had a great time at the wedding. Frankly, Ray didn't even care if they hadn't given a gift. He just needed to know whether to send a thank-you note. Ray called Aaron. Aaron said maybe Walt had left an envelope on the gift table like Aaron had. "Yes, but we got your envelope with the cash inside," Ray said. "Maybe my envelope looked too thin, and some thief thought Walt's envelope looked nice and fat." Aaron asked Ray if he had looked everywhere for Walt's gift. Had he called up the wedding site to see if anything had been left behind? Ray said that he had looked everywhere and made a lot of calls that were fruitless. Ray didn't know what to do. If he sent Walt and Mary a thank-you note for a gift they hadn't given, they would be _ . If he didn't send them a thank-you note for a gift they had given, they would get angry. "What would you do?" Ray asked. Aaron said he would call Walt up and tell him the problem. "You can't go wrong with simply being honest," Aaron said. "Oh, yes, you can," Ray contradicted him. "Sometimes it's best to let sleeping dogs lie." But he thought about it, and finally decided that Aaron was right. He called Walt and told him the problem. Walt said that yes, he had given an envelope. In fact, the envelope contained $500 cash. "$500?!" Ray asked. "That's a lot of cash, Walt!" Walt admitted that it was, but he had gotten a fat raise early that year and Ray's was the only wedding he'd been to in quite a while. Ray thanked him very much, and apologized sincerely for someone stealing Walt's generous gift. Walt told him that it was "only money". When Ray told Aaron about Walt's gift, Aaron laughed. "The only thief at the wedding was Walt! I stopped playing cards with him last year because I caught him cheating. And it was only a $10 pot! I'm sure I told you about that." "Yes, you did tell me," Ray said. But, of course, he had to send Walt a thank-you note anyway.
Question: Which of the following is true according to the passage?
Options: (A) Aaron looked on honesty as the best policy. (B) Walt had surely gotten a fat raise early that year. (C) Stealing had never happened at a wedding. (D) Nobody checked on the gift table all evening.
Solution: A