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 input: 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 output: 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.
Q: Article: Last winter, when I was heavily pregnant, I was visiting my sister and brother-in-law's house and had to park in a nearby parking lot because they didn't have accessible parking. The snow was extremely heavy and there was lots of ice on the ground --- not many people had ventured out that evening! When I returned to my car around 11pm, I noticed that I was the only car left. Nervously, I hopped into the car and let it warm up a bit. When I finally tried to drive away, my wheels began to spin. I was stuck! I spun and spun and wondered what to do. All of a sudden, in my rear view mirror, I saw four teen-aged boys approaching my car. They were walking side by side in a line and dressed a bit like gang members --- at least I thought that's what they looked like. My car was in a very isolated area and I began to panic. I was certain they were coming to my car to harm me. Terrified, I just froze. One of the young men tapped on my window and said "Excuse me, Ma'am, can we help you? You seem stuck." Still afraid and fearing the worst, I said "I am stuck." And the young man said "It's okay, stay in your car and we'll push you out of the snow." And they did! When they finally got me out of the snow, they smiled and waved. I rolled down my window and thanked them, embarrassed to have judged them so poorly
Question: Which of the following is TRUE according to the text?
Options: (A) One of the four teenagers was a gang member (B) The kids wanted to help the author out of trouble (C) The author would have a baby in her car (D) The young men enjoyed pushing cars out of the snow
A:
B