Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following 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
Solution: B
Reason: 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.

Now, solve this instance: Article: In December 2008, Caroline Kennedy -- daughter of the late U.S. President John F. Kennedy--sat down, as a frontrunner for the Senate seat in New York, for a televised interview that helped decide the future of her campaign. The result was a disaster. Her performance wasn't well received, in part because her speech was full of filler words--"ums," "ahs" and "you knows." One listener counted 27 "ums" and 38 "you knows" in the space of five minutes. A few weeks after the interview, Kennedy ended her Senate campaign. Filler words may seem natural in everyday speech, but they can be deadly in formal presentations. "Using excessive fillers is the most annoying speech habit," said Susan Ward, a speech specialist. "They take your listener's attention away often to the point that he doesn't hear anything you say. Your message is entirely lost." Many speakers are afraid of pause. They believe their audience will think they are inarticulate if they pause to think of what to say next, so they use filler words to avoid the silence. However, a pause is actually more impressive than a filler word. Listeners know that the speaker is thinking, trying to find the right word. Sometimes a pause can actually improve a speech, as when an actor uses a dramatic pause to hold the attention of his audience. A speaker shouldn't be afraid to pause occasionally during a speech; it shows self-confidence. It takes some work to cut out filler words. You can begin by taking a few seconds to think about what you want to say the next time you are asked a question. This pause will help you begin powerfully, and it will help you avoid using a filler word. The same public speaking technique applies when you are shifting from one idea to another. While you may be tempted to fill the silence between ideas with a filler word, remember to allow yourself to pause and think about what you want to say next. If you need help overcoming your "um" problem, consider asking a family member or a friend to point out when you use filler words. You also could record an upcoming presentation and then watch yourself in action. You may be amazed at how often you say "um" or "uh"! Although we live in a fast-paced society that seemingly demands instant answers, we must use the pause to our advantage. Finally, we should only speak when we are ready.
Question: The reason why filler words are considered annoying by speech specialist is that _ .
Options: (A) they prevent the listener from focusing on what the speaker is saying. (B) they convey the speaker's superiority to the listener. (C) they mean the speaker is not articulate at all. (D) they make the speaker appear self-confident.
Student:
A