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.

Let me give you an 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
The answer to this example can be: B
Here is 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.

OK. solve this:
Article: Laptop computers are popular all over the world.People use them on trains and airplanes, in airports and hotels.These laptops connect people to their workplace.In the United States today, laptops also connect students to their classrooms. Westlake College in Virginia will start a laptop computer program that allows students to do schoolwork anywhere they want.Within five years, each of the 1500 students at the college will receive a laptop.The laptops are part of a $10 million computer program at Westlake, a 110-year-old college.The students with laptops will also have access to the Internet.In addition, they will be able to use e-mail to "speak" with their teachers, their classmates, and their families.However, the most important part of the laptop program is that students will be able to use computers without going to computer labs.They can work with it at home, in a fast-food restaurant or under the trees--anywhere at all! Because of the many changes in computer technology, laptop use in higher education, such as colleges and universities, is workable.As laptops become more powerful, they become more similar to desktop computers.In addition, the portable computers can connect students to not only the Internet, but also libraries and other resources.State higher-education officials are studying how laptops can help students.State officials are also testing laptop programs at other universities, too. At Westlake College, more than 60 percent of the staff use computers.The laptops will allow all teachers to use computers in their lessons.As one Westlake teacher said, " Here we are in the middle of Virginia and we're giving students a window on the world.They can see everything and do everything."
Question: The main purpose of the laptop program is to give each student a laptop to _ .
Options: (A) connect them to libraries (B) access the Internet (C) work at home (D) use for their schoolwork
Answer:
D