Detailed Instructions: 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.
See one example below:
Problem: 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
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: Patients and doctors alike have long believed in the healing power of humor.It is claimed that humor not only affects patients' moods, but can actually help them recover faster. Several studies seem to support this.Patients in better spirits are known to have higher immune cell counts.Some have even claimed to have healed themselves of serious illnesses by reading comics and watching comedies. Despite all this, many researchers are not convinced.They point out the fact that many sufferings have been known to disappear naturally, with or without a daily dose of laughter.They also say that while optimism in general does seem to be related to better health, it is hard to tell which comes first. Humor in times of stress, however, clearly makes us feel better.On one level, it takes our minds off our troubles and relaxes us.On another, it releases powerful endorphins, a chemical produced by your body that reduces pain. There are cases where the appreciation of a good joke is indeed directly related to a person's health.It can show, for example, whether a person has suffered damage to one particular area of the brain: the right frontal lobe . Scientists confirmed this by having people read jokes and asking them to choose the funniest endings from a list.Subjects with normal brains usually chose endings that were based on a relatively complex synthesis of ideas.Subjects with specifically located brain damage, however, responded only to slapstick endings, which did not depend on a particular context.When pressed, the brain-damaged subjects saw the logic in the correct endings.They simply did not find them funny. Of course, humor is largely an individual matter.Next time your friend does not get one of your jokes, there is no need to accuse him of being a lamebrain.However, you might suggest that he lighten up--for the health of it.
Question: We can infer from the passage that _ .
Options: (A) all researchers have agreed on the healing power of humor (B) people seldom accuse their friends of not understanding jokes (C) the author holds a positive attitude to the healing power of humor (D) reading comics will surely become a popular way of treating diseases
Solution:
C