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: When it comes to President Obama, most of his personal business is already known by the public. Personal information about his children, Malia and Sasha, however, has been kept a little more _ . The New York Timesrecently released a list of rules that Michelle Obama has mentioned over the years that Malia and Sasha must follow during their time in the White House, as well as in general. See how the first family educates their children: The girls must write reports about what they've seen on their trips, even if it's not required by their school. Malia may use her cell phone only on the weekends, and she and her sister cannot watch television or use a computer for anything but homework during the week. Malia and Sasha have to play two sports: one they choose and one selected by their mother. Malia must learn todo laundry before she leaves for college. The girls have to eat their vegetables, and if they say they are not hungry, they cannot ask for cookies or chips later. While these might be shocking to some, Michelle said, "They're not little princess. It's just basic rules, boundaries, and expectations that we would have normally." Michelle also mentions another set of rules: The girls must do their chores , though the White House has a large staff. Malia and Sasha have chores of their own. They must play a team sport, because it's about learning how to play on a team, how to lose and how to win gracefully. ... It sounds like Michelle and Barack want the best for their kids and to make them as well-rounded as possible. What are your thoughts on the Obama family rules?
Question: What's the passage mainly about?
Options: (A) The first family daily life. (B) The first family rules. (C) How to be good parents. (D) How to be good students.
Solution: B