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: Like every other Olympics, the London 2012 Olympics will depend upon thousands of volunteers to help with the smooth running of the event. To show the importance of the role, London 2012 volunteers are to be called 'Game Makers'. Lord Coe has said recently: "London 2012 is relying on brilliant Game Makers to help us create a great Olympic and Paralympic Games. " London 2012 Olympics volunteers will provide the face of London 2012, working behind the scenes and making sure the games are as well organized, efficient and, most importantly, as enjoyable as possible. Despite the hard-work and often unsociable hours required of volunteers, applications to be considered as a Game Maker were unprecedented with all the 70, 000 available positions applied within days. But, for those still interested in helping out during 2012 and being in the middle of the action, there are still a lot of opportunities available. If you were one of those who missed out on the chance of becoming London 2012 volunteers, you can now apply to be one of the 8, 000 London Ambassadors . This important role involves greeting fans from all over the world, welcoming them to the fantastic capital city of London and providing a friendly face as well as help, advice and a good old traditional warm British welcome. The view of London most visitors take away with them after the 2012 Olympics will mostly _ the volunteers and ambassadors, so these roles play a very important part in the process of making the UK a great place to travel to. Becoming a London Ambassador is a brilliant way to be involved with the London 2012 volunteers scheme and become a part of what should be an historic summer.
Question: Why are London 2012 volunteers called "Game Makers"?
Options: (A) They'll decide whether the London 2012 Olympics are a success. (B) They play an important role in the London 2012 Olympics. (C) The London 2012 Olympics won't be organized without them. (D) They will work hard and effectively.
A:
B