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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: When she graduates from Columbia University next year with a master's degree in Public health, Eric Wheeler is hoping to get a job in international reproductive health. The 26-year-old post-graduate has always wanted to work in public service. But public service doesn't pay much, and her two-year program at Columbia costs about $50,000 a year with living expenses. She has a scholarship from Columbia that covers just $4,000 a year and has taken out loans to pay for the rest. She worries that she will spend years paying back her student loans and not have money left over to put away in an IRA. Wheeler is wondering what she can do to ease the pain of being in debt. Is there anything she can do to handle the debt? The good news is that in 2007, Congress recognized that there were so many students in Wheeler's position that it passed the College Cost Reduction and Access Act. There were two programs established by this act that Wheeler should look into. The first is the income-based repayment plan, which allows lower-income graduates with a lot of debt to reduce their monthly payments. Depending on a graduate's income and level of debt, the program, which goes into effect July 1, could limit his or her annual educational loan debt repayment to 15 percent of discretionary income ,said Peter Mazareas, vice charman of the College Saving Foundation. The second is the public service loan forgiveness plan, in which the federal government will forgive the remaining debt of borrowers who make 10-year loan payment while working full time in public-service jobs. But the graduate must have a certain loan which is listed in the plan. Depending on the level of debt Wheeler ends up with and how much she repays over 10 years, Mazareas said she could end up with about $75,000 of her debt forgiven. " Tipically, it is projected that a borrower who performs public service under this program will repay only about one-fourth to one-half as much money as a borrower who does not", he said. He also pointed out that public service is broadly defined and includes any government and nonprofit organization job.
Question: How much debt will Erin Wheeler be probably in when she graduate?
Options: (A) $ 8,000 (B) $ 50,000 (C) $75,000 (D) $92,000
Solution:
D