user: 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: Mo Yan was born in 1955, in GaomiCounty inShandongprovince to a family of farmers. Mo was 11 years old when theCultural Revolutionwas launched, at which time he left school to work as a farmer. At the age of 18, he began to work at a cotton factory. During Mo's teenage years, with a series of political campaigns from theGreat Leap Forwardto theCultural Revolutiongoing on, his access to literature was limited to novels in thesocialist realiststyle under Mao Zedong, which centered largely on the themes of class struggle and conflict. At the close of the Cultural Revolution in 1976, Mo joined in the People's Liberation Army(PLA), and began writing while he was still a soldier. He began his career as a writer in thereform and opening upperiod, publishing dozens of short stories and novels in Chinese. His first novel was Falling Rain on a Spring Night, published in 1981. In 1984, he received a literary award from the PLA Magazine, and at the same year he began attending the Military Art Academy, where he first adopted the pen name of Mo Yan. He published his firstnovella , A Transparent Radish in 1984, and released Red Sorghum in 1986, launching his career as a nationally recognized novelist. In 1991, he obtained a master's degree in Literature from Beijing Normal University. "Mo Yan" -- meaning "don't speak" in Chinese -- is his pen name. In an interview, he explained the name came from a warning from his father and mother not to speak his mind while outside, because of China's revolutionary political situation from the 1950s, when he grew up.  Mo Yan's Red Sorghum Clan is about the generations of a Shandong family between 1923 and 1976. The author deals with great changes in Chinese history such as the War of Resistance Against Japanese Invasion, theCommunist Revolution, and theCultural Revolution, but in an unusual way, for example from the point of view of the invading Japanese soldiers. His second novel, The Garlic Ballads, is based on a true story of the farmers of Gaomi Township fighting against a government that would not buy its crops. 
 Question: According to the passage, the name "Mo Yan"   _  . 
 Options: (A) made him and his works famous nationwide (B) might remind him "not to speak his mind" in public places (C) was first used when he began writing as a soldier in the PLA (D) was given by his parents because of the then political situation
Student:

assistant: B