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.

[EX Q]: Article: The fact that blind people can see things using parts of their bodies apart from their eyes may help us to understand our feelings about color.If they can sense color differences, then perhaps we, too, are affected by color without knowing it.Salesmen have discovered by experience over a long period of time that sugar sells badly in green wrappings, that blue foods are considered not agreeable to the taste, and that cosmetics should never be packed in brown.These discoveries have grown into a whole subject of color psychology. Some of our preferences are clearly psychological.Dark blue is the color of the night sky and therefore connected with calm, while yellow is a day color connected with energy and encouragement.Experiments have shown that colors, partly because they are connected with psychology, also have a direct effect on people's mind.People in bright red surroundings show an increase in breathing speed, heartbeat and blood pressure.Red is exciting.Pure blue has exactly the opposite effect; it is a calming color.Being exciting, red was chosen as the signal for danger, but a closer study shows that a bright yellow can produce a more basic state of alarm, so fire engines in some advanced areas are now rushing around in bright yellow colors that stop buses, trucks and cars.
Question: The passage tells us that salesmen have _ .
Options: (A) tried colors on blind people (B) found out that colors affect sales (C) developed a special subject of color psychology (D) discovered the relationship between color and psychology
[EX A]: B

[EX Q]: Article: Educating Girls Is a Real Lifesaver Clare Short knows it. Every developing economist knows it. The World Bank knows it. The education of girls is the surest way to reduce poverty. The reason is simple. All the evidence shows that taking girls out of the fields and homes, and putting them behind desks, raises economic productivity, lowers infant and maternal death rates, reduces birth rates, and improves environmental management. Why, then, are 90 million primary school-age girls around the world not in school? For the same reason that when Charles Dickens was writing David Copperfield 150 years ago girls were absent from the British education system: Men in power mostly prefer _ that way, or are not interested enough in changing the situation to commit energy and money to doing so. The countries with the poorest record for having women in positions of power or influence have the worst figures for girls' education. High-profile intervention by organizations such as the World Bank has begun successfully with several countries, and more of the same will probably be needed to bring change in conservative, male-run states. Even if there were no development payoff from gender equality in schools, the education of girls would still be a cause worth fighting for. Education is a human right, and the denial of it to girls is a scar on the community in the twenty-first century. To be born a girl in a rural area in Nepal, Pakistan, Indonesia, Morocco, Togo, or Sudan -- half a dozen of the most shameful performers -- means being condemned to a life without school, education, or clean water, marriage and babies coming too early, too many births, children who die of preventable diseases, backbreaking work in the fields, subordination to husband and his family, and an early death. Every year, almost 12 million children under the age of five needlessly die of infectious diseases associated with poverty. But each additional year spent by their mothers in primary school lowers the risk of premature child deaths by about 8 percent. In Pakistan, an extra year of school for 1,000 girls could prevent sixty infant deaths. With women and girls being the main farmers in Africa and southern Asia, their education offers a chance to develop more efficient farming practices, improve output, and raise awareness of the ecological needs of the land with tree planting and farming. Therefore, the world community cannot afford to ignore this avenue of change.
Question: Which is Not the reason why educating girls reduces poverty?
Options: (A) It improves environmental management. (B) It raises economic productivity. (C) It creates more children. (D) It lowers maternal death rates.
[EX A]: C

[EX Q]: Article: Everyone needs friends. As the old saying goes, " No man is an island" . In other words, no one can survive without the help and friendship of others. One can hardly live without a friend. Society is made up of people , and making friends is a very important part in our life. Friends can give you a lot. Firstly, if you have trouble with some problems, you can talk to your good friends and exchanged opinions . Thus you will feel comfortable and encouraged.Secondly, if you wish to do some physical exercises, such as playing table tennis, you can play with friends and have a good time, In short, we need friends. But what is true friendship ? Some people think friends are people whom they can play with, others believe true friendship lies in similar interests . However, in my opinion, "A friend in need is a friend indeed". True friendship can encourage you when you are in difficulties . True friends can give you warnings against danger. True friends not only share with you your joy and happiness but also your trouble and anxiety.When you need him he will give you a hand and _ . Of course, these principles are the same to you when you treat your friends.
Question: What does the author want to tell us by saying, "No man is an island"?
Options: (A) To form an island, we need more than one man. (B) Without friendship , people can not live on an island. (C) Friends can make you feel comfortable and encouraged. (D) Everyone needs friends' help and friendship.
[EX A]:
D