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.

Article: It is reasonable to say that every teenager can be affected by peer pressure at some point. Every day, in any high school, peer pressure has a major influence over the behavior of teenagers. It can be as subtle as being persuaded to be late for class or as extreme as a dangerous drug. Whether subtle or extreme, peer pressure can have damaging, sometimes life changing, and even serious results. "Teens don't often consider the long-term results that some behavior can cause," said Terri Price, a researcher. "Peer pressure can be very difficult to handle for many teens because of their fears of not fitting in". Peer pressure has always been part of teen life, but teens experience _ differently than their former generations did in the past. Sources of peer pressure have increased because of the Internet and other electronic communications. Recognizing peer pressure can be as simple as noticing that you have been asked to do something that you are not comfortable with. "Listen to your instinct , which is a sign for whether something is right or wrong. If it feels wrong, then most likely it is. "says Price. Teens are in a time of life when they are still discovering who they are. Many teens are influenced by peer pressure because of their insecurities . This can make them helpless especially when their self-control is weak or they lack healthy support, causing them to take risky behavior or turn to unhealthy support. Dealing with peer pressure is a topic of concern for teens. People can say, "Just say no," but the truth is that the statement is easier said than done.
Question: You can know whether a teen suffers peer pressure by watching _ .
Options: (A) whether he often surfs the Internet (B) whether he can get security (C) whether it is subtle or extreme (D) whether he feels comfortable with it
D

Article: Andy Steele lives just a few blocks from the campus of Black Hills State University in Spearfish, S.D., so commuting to class isn't the problem. But he doesn't like lectures much, isn't a morning person, and wants time during the day to restore motorcycles. So Steele, a full-time senior business major, has been taking as many classes as he can from the South Dakota State system's online offerings. He gets better grades and learns more, he says, and insists he isn't missing out on the college experience. "I still know a lot of people from my first two years living on campus, and I still meet a lot of people," he says. But now, he sets his own schedule. At least 2.3 million people took some kind of online courses, according to a recent survey by The Sloan Consortium, an online education group, and two-thirds of colleges offering "face-to-face" courses also offer online ones. But what were once two different types of classes are looking more and more alike and often falling into the same pool of students. At some schools, online courses originally intended for non-traditional students living far from campus have proved surprisingly popular with on-campus students. A recent study found 42 percent of the students enrolled in its distance education courses were located on campus at the university that was hosting the online courses. Numbers vary depending on the policies of particular colleges, but other schools also have students mixing and matching online and "face-to-face" credits. Motives range from lifestyle to adapting a job schedule to getting into high--demand courses. Washington State had about 325 on-campus undergraduates taking one or more distance courses last year. As many as 9,000 students took both distance and in-person classes at Arizona State last year. "Business is really about providing choices to their customers, and that's really what we want to do," said Sheila Aaker, extended services coordinator at Black Hills State. Many schools, such as Washington State and Arizona State, let departments and academic units decide who can take an online course. They say students with legitimate academic needs a conflict with another class, a course they need to graduate that isfull--oftenget permission, though they still must take some key classes in person.
Question: What is the purpose of the passage?
Options: (A) To introduce Steele to us, who prefers online courses. (B) To tell us about the development of campus courses. (C) To show the differences between campus courses and online courses. (D) To show more on-campus students are taking online courses.
D

Article: The modern world is full of useful objects that were invented by someone, from spoons and chopsticks in our kitchens to the Ipads in our handbags. Each invention is an example of the creative power of the human mind. Where do inventors get their inspirations ? The inspiration behind each of these inventions varies. Take the shopping cart as an example. Sylvan Goldman was a grocery store owner. Like most businessmen, he wished that his customers would buy more so that he could make more money. He knew what if they could carry more goods easily as they were shopping, when his sales would go up. While thinking about the problem one night, he had an idea. Working with a local handyman named Fred Young, he designed the first shopping cart. Today, retailers who use shopping carts sell more goods and make more profits. Nature has also inspired inventors throughout history. This is what happened to George de Mestral one day. While hunting with his dog in the Swiss Alps, he noticed how the burs of certain plants stuck to his clothing and to his dog' s fur. After examining them under a microscope, he found they had tiny hooks that could easily stick to the fibers of clothing or animal hide. For the next ten years, George de Mestral searched for the hest way to produce his idea. The result of his original inspiration was Velcro, which is used in many modem objects, including sportswear, shoes, automobiles, and even space suits. These examples show us that there are at least two possible inspirations for human creativity in the world of inventions -- profit and nature. No doubt, the future will continue to breathe new life into the economies of the world with fresh ideas and inventions. How many of their creations will be inspired by natural phenomena? The world's problems require creativity and we can expect best solutions from future generations.
Question: Why did sales go up in Sylvan Goldman's grocery store after he began providing shopping carts?
Options: (A) Because grocery stores without shopping carts made less money. (B) Because he lowered the prices of his goods. (C) Because customers liked the shopping cart's creative design. (D) Because customers were able to carry more items when shopping.
D