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: Exercise is one of the few factors with a positive role in long-term control of body weight. Unfortunately, that message has not gotten through to the average American, who would rather try switching to "light" beer and low-calorie bread than increase physical efforts. The Centers for Disease Control, for example, found that fewer than one-fourth of overweight adults who were trying to lose weight said they were combining exercise with their diet. In rejecting exercise, some people may be discouraged too much by caloric-expenditure charts; for example, one would have to quickly walk hard three miles just to work off the 275 calories in one delicious Danish pastry . Even exercise professionals accept half a point here. "Exercise by itself is a very tough way to lose weight," says York Onnen, program director of the President's Council on Physical Fitness and Sports. Still, exercise's supporting role in weight reduction is vital. A study at the Boston University Medical Center of overweight police officers and other public employees confirmed that those who dieted without exercise regained almost all their old weight, while those who worked exercise into their daily routine maintained their new weight. If you have been sedentary and decide to start walking one mile a day, the added exercise could burn an extra 100 calories daily. In a year's time, assuming no increase in food intake, you could lose ten pounds. By increasing the distance of your walks gradually and making other dietary adjustments, you may lose even more weight.
Question: What is said about the average American in the passage?
Options: (A) They tend to hate "light" beer and low-calorie bread. (B) They usually ignore the effect of exercise on losing weight. (C) Most of them were combining exercise with their diet. (D) They know the actors that play a positive role in keeping down body weight.
Example Output: B

Example Input: Article: The first chocolate was eaten by people in South America hundreds of years ago. In those days, the people did not really eat chocolate. They used the cocoa bean to make a chocolate drink and they enjoyed it very much. Many years later, the cocoa bean was brought to other countries and people came to love the taste of chocolate. In 1824, John Cadbury opened a small shop in Britain. One of the things he sold was chocolate drink. In 1831, he opened a factory to make chocolate drink. He wanted to encourage people to drink chocolate instead of other drinks. A few years later, a man called Joseph Fry found a way to make chocolate instead of only drinking it. But at that time chocolate was very expensive and only the rich people could buy it. Later, ad more and more chocolate bars were produced and sold, it became cheaper. However, at first only plain chocolate (a kind of chocolate without milk and with very little sugar) was produced. Milk chocolate came later and this was made by adding milk to the chocolate. The first milk chocolate bar was made in Cadbury's factory in 1897. Their most famous chocolate, Cadbury's Milk Bar, was made in 1905, It has been the most popular chocolate in Britain and around the world for over 100 years. The Cadbury factory is still in Britain and the chocolate produced there is eaten all over the world. Every year, thousands of visitors visit the factory in order to see how chocolate is made.
Question: Hundreds of years ago, people first began to drink chocolate in_.
Options: (A) South Americ (B) South Africa (C) Britain (D) Australia
Example Output: A

Example Input: Article: During the week days,they are luckily busy office people; but on weekends,they are just a brood of stay home animals.A recent survey shows that office workers in China prefer quiet and easy ways to spend their weekends. In the survey,conducted by job seeking and offering website Zhaopin.com,32.8 percent of the 6000 respondents choose to stay home at weekends and have a good rest,the Beijing Morning Post reported. Twenty percent use their days off to do housework. And only 19.3 percent are willing to have fun during the break time from work.Their first choice of fun is shopping. Other choices,though practiced by few,include meeting friends,accompanying the children,trips to the suburbs,and lessons for more skills. When they go shopping,54.5 percent of the white collars actually shop in supermarkets,while 27.9 percent attend other stores,especially when discounts are offered. These activities don't seem to cost much,as 60 percent spend average less than 200 yuan(US$26)during weekends,and 30 percent no more than 500 yuan. When asked whom they would spend the weekends with,about 40 percent mention their partners,and 30 percent prefer a weekend all by themselves.Less than 20 percent hang out with friends. Only 5.8 percent would kill the time with their colleagues.This is because we tend to avoid too many personal contacts with our coworkers when we don't have to work with them,according to some experts.
Question: How many of the office workers who are the respondents do the housework at weekends?
Options: (A) 1968. (B) 1158. (C) 1200. (D) 1674.
Example Output:
C