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.
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Question: Article: The Mysterious Universe By Ellen Jackson and Nic Bishop How did the universe begin? How big is it? What is dark matter? Cosmologist and expert supernova hunter Alex Filippenko hopes that supernovas can help us answer some of these questions. But first we've got to find them! Join Alex and his team as they go on the hunt with huge telescopes and banks of computers. The Time and Space of Uncle Albert By Russell Stannard What would you say if your uncle asked you whether you would like to go into space? You'd say, "When do I leave?", just like the girl in this story. Gedanken is speeding across the universe trying to help her uncle answer some questions, such as "How big is space?" and "Where does gravity come from?" Along the way she also discovers how to get heavier without getting fat, how to live forever without knowing it, and the strange things that can happen when you go really fast. George's Secret Key to the Universe By Lucy Hawking and Stephen Hawking When George chases his pet pig through a hole in the fence, little does he expect that he will soon be riding a comet around Saturn . But just as he discovers the joys of space exploration with the computer Cosmos, which can open doors anywhere in the universe, everything starts to go wrong. When George's lest-favorite teacher steals Cosmos and traps his friend's dad in a black hole, can George set things right in time? A Child's Introduction to the Night Sky By Michael Driscoll With a telescope or without one, this book can get you started exploring planets, stars and even strange stuff like time, space, and black holes. The universe is a big place, but this book comes with a handy star finder that you can take out with you at night to help you find your way around the stars. Look up and discover the universe! 
 Question: According to the text, Alex Filippenko   _  . 
 Options: (A) invented huge telescopes (B) is looking for supernovas (C) doesn't need many computers (D) knows a lot about dark matter

Answer: B


Question: 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.

Answer: B


Question: Article: It is 7 o'clock in the morning. You check yourself in the mirror, adjust your collar, and consider the busy day ahead. But at least you know that the stress won't damage your health, for this is no ordinary set of clothes you are wearing. Set within the fabric are numerous sensors, constantly monitoring your vital signs. If danger signs are detected, the garment is programmed to contact your doctor and send a text message telling you to take it easy.  Garments that can measure a wearer's body temperature or trace their heart activity are just entering the market, but the European project BIOTEX weaves new functions into smart textiles.  _ biosensors in a textile patch can now analyse body fluids, even a tiny drop of sweat, and provide a much better assessment of someone's health. Jean Luprano, a researcher at the Swiss Centre for Electronics and Microtechnology (CSEM), coordinates the BIOTEX project. "One of the most obvious applications for smart fabrics is in the medical field," he says. "There has been a good deal of progress with physiological measurements, body temperature or electrocardiograms . But no one has yet developed biochemical sensing techniques that can take measurements from fluids like sweat and blood. We are developing a suite of sensors that can be integrated into a textile patch. The patch is a sensing and processing unit, adaptable to target different body fluids and biochemical species. At the very least, some basic biochemical  analyses could complement the physiological measurements that can already be monitored. In some circumstances, fluidic analysis may be the only way to get information on a patient's health status." 
 Question: What is the text mainly about? 
 Options: (A) How to make your day stress free. (B) Biochemical sensing techniques. (C) Smart clothes that track your health. (D) New advancement in the medical field.

Answer:
C


