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 Input:
Article: For new countries joining the European Union, and older ones getting used to their dark red passports, becoming "Europeans" is a bit like marrying into a large, eccentric family. Europeans have a lot in common but it is their differences, not their similarities, that attract the attention of sociologists and market researchers, and are more interesting. * 35% of Germans live alone, but only 9% of Spaniards. Perhaps this explains why Spaniards lead Europe in the habit of going out for a drink. * The British attend more adult evening classes than anyone else in Europe, and the Belgians least. So it can't just be the dark evenings. There are no figures on how many Britons go for a drink afterwards. If there were, they might be up at the top with Spain! * The British think black cats are lucky. Every other European country regards them unlucky. * The Dutch and Germans are the greatest caravaners , but the Germans like bigger beds in their caravans. * The French are the most athletic Europeans. Next come the Dutch. But the Belgians, just over the border, play fewest sports. * The Germans spend twice as much on heating as the Spaniards. Well, of course they do, it's colder. * Dutch husbands do the household shopping a lot more often than Italians or Spaniards. * The French are the champion public transport commuters of Europe. If you hate commuting, go and live in the Netherlands, where journeys to work are shorter than anywhere else. * The amount of direct eye-contact between strangers is three times greater among Spaniards than it is among the British or Swedes. Sharing a lift is torture for both the British and the Swedish. * No European countries really agree with any other about how to make good coffee. All of them are different. There are exceptions to all these rules. Deal with them in the spirit of my 8-year-old daughter. "If you don't understand each other's language, you just laugh a lot, and eat, and point at things."
Question: We can know from the passage that _ .
Options: (A) sociologists are most interested in the idea of the European Union (B) all the European countries are not willing to join the European Union (C) Europeans have a lot more differences than similarities (D) trade opportunities exist in the cultural differences in the European Union

Ex Output:
A

Ex Input:
Article: Graham and his friends preferred to shoot up in their arms, necks and legs. A dealer once said Graham was the type who would never be able to turn back and that he expected him to die from the drug. Wendy feared the same, but didn't know how to save her son. " Once, after he'd disappeared for more than a month, I found him at a friend's house with a bunch of other users," she said, "I got down on my hands and knees, begging him to come home. He did, but the next morning he was gone. I don't know what made him do it, but I drove 20 miles to the nearest train station. Graham was headed for Seattle, his pockets full of drugs. If I hadn't gotten there in time, I would never have seen him alive again." The turning point came in 2007, after Graham was arrested yet again for possession. Wendy got a call from the Montana Drugs Project, which works with local law enforcement to keep track of youth-related crimes so it can help families in trouble. Following a counselor's advice, Wendy hired two men to come to her home in the middle of the night, tie Graham and take him to a treatment program in Thompson Falls, Montana. "I was high when they came and really angry with my mom," he said, "But if she hadn't done that, drugs would have killed me." After six months of treatment, Graham, now 19, came back to Kalispell, where he's grown close to Wendy once again. "I still have the desires every day and attend support meetings every night," he said, "But life is worth living again. My mom thinks that's a miracle. I guess she is right."
Question: When the two men came to their home in the middle of the night, Graham _ .
Options: (A) had just taken drugs and was in the state of excitement. (B) was sleeping in a high bed above the ground. (C) had just taken drugs and was in the state of suffering. (D) was quarrelling with his mother.

Ex Output:
A

Ex Input:
Article: When talking about colds, maybe some people say it is very common. During the cold winter days, many people will complain the cold winter makes them catch a cold, and what they feel upset are not only the headache, cough but also the runny nose. It is so embarrassing when they forget to take a handkerchief or tissue along with them. Want to stay away from colds? Put on a happy face. Compared to unhappy people, those who are cheerful and relaxed are less likely to suffer from colds, according to a new study. It's possible that being happy helps the body fight illnesses, say the researchers from New York University. "It seems that positive feelings may reduce the danger of illness," said the study's chief researcher Sheldon Cohen. In an earlier study, Cohen found that people who were cheerful and lively caught coughs and colds less often. People _ were also less likely to tell their doctors that they felt ill. In this study, Cohen has interviewed 193 adults every day for two weeks. During the interviews, the people told researchers that they were given colds by doctors and had to stay alone in a room for six days. The results showed that everyone in the study was equally likely to get ill. But for people who said they felt happy during the research period, their illness are less serious and lasted for a shorter time. Cohen believes that when people experience positive feelings, their body may produce a chemical that helps fight illness and disease. So if you are worried about your health, look on the brighter side more often.
Question: What did the study find?
Options: (A) People who felt happy never got ill. (B) People's feelings didn't influence their health. (C) People with good feelings became ill more easily. (D) People with positive feelings had less serious illnesses.

Ex Output:
D