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: On a Friday night, a poor young artist stood at the gate of the New York railway station, playing his violin. The music was so great that many people stopped to put some money into the hat of the young man. The next day, the young artist came to the same place, and put his hat on the ground gracefully. Different from the day before, he took out a large piece of paper and laid it under his hat. Then he began to play the violin. It sounded more pleasant than ever. Soon he was surrounded with people who were attracted by the words on that paper. It said, "Last night, a gentleman named George Sang put an important thing into my hat by mistake. Please come to claim it soon." After about half an hour, a middle-aged man rushed through the crowd to the violinist and said, "Yes, it's you. I knew that you were an honest man and would certainly come here." The young violinist asked calmly, "Are you Mr. George Sang?" The man nodded. The violinist asked, "Did you lose something?" "It's a lottery ticket," said the man. The violinist took out a lottery ticket on which George Sang's name was seen. "Is it?" he asked. George nodded and took the lottery ticket and kissed it, then danced with the violinist. The violinist was a student at an arts college and had planned to attend advanced studies in Vienna. Later his classmate asked the violinist, "At that time you needed money to pay the tuition and you had to play the violin in the railway station every day to make money. Why didn't you keep the lottery ticket for yourself?" The violinist said, "Although I don't have much money, I live happily. But if I lose honesty I won't be happy forever." Through our lives, we can gain a lot and lose so much. But being honest should always be with us.
Question: What did the young artist do at the railway station on Friday?
Options: (A) He played the violin to make some money. (B) He waited for the train to Vienna. zxxk (C) He came to buy a train ticket to Vienna. (D) He walked around the New York railway station.
[EX A]: A

[EX Q]: Article: Millions of people will be able to track each and every move by friends and family through their mobile phones,thanks to a new feature launched by Google yesterday. The new system named "Latitude" uses a map to show exactly where a loved one is at any time, sometimes discovering their location to a few meters.Worried parents will be able to check up on where their children have got to after school, friends can meet for a quick drink if they see they are nearby and wives will be able to see if their husbands really are working late at the office. The feature was made available immediately on millions of mobile phones that can access the web,such as the BlackBerry.Within weeks Google hopes to launch a new one that wilt also work on computers as well. "Once you've shared your location,you can hide it from all of your friends at once,or you can turn off Google Latitude completely at any time." said a Google spokesman."You can adjust your privacy settings in Latitude so that you share as much or as little about your location as you want,with whom you want." Google said that the company had tested the product with thousands of people to make sure that it was safe for the customers,but experts were not so sure.Simon Davies,director of Privacy International,said Latitude would open up a "privacy minefield ". "It's about the little white lies.You might be avoiding going to work, and now your boss might be able to see that you're at Twickenham instead of at home."said Ian Angell, an information expert at the London School of Economics."You've already got mobile phone technology where husbands and wives track each other in secret.Now Google is so widely used that it will only worsen the situation."
Question: According to Google,the new system "Latitude" can _ .
Options: (A) prove that the partner has told a lie about working late (B) tell the parents the locations of their children after school (C) provide the friends with the most suitable pub for a drink (D) help people find what their loved ones are doing at any time
[EX A]: B

[EX Q]: Article: There are a lot of differences in life in the US that you can only learn by living here. However, we will try to introduce you to some of the more important cultural differences. Personal Space When two people are talking to each other, they tend to stand a distance apart. Each person has an invisible boundary around their body into which other people may not come. Interestingly,the average personal distance varies from culture to culture. Americans tend to require more personal space than in other cultures. So if you try to get too close to an American during your conversation, he or she will feel that you are "in their face" and will try to back away. Try to avoid physical contact while you are speaking, since this may also lead to _ . Tipping Restaurants do not include a service charge in the bill, so you should tip the waiter 15% of the total bill. If service is slow or particular bad, some Americans will tip only 10%. If service is particularly good, it is appropriate to tip 20%. If service is so bad that you will never eat in the restaurant again, leave two cents. It tells the waiter that you haven't forgotten to leave a tip. Tipping is only appropriate in restaurants which offer table service. You do not tip the cashier in a fast food restaurant. Gestures To wave goodbye or hello to someone, raise your hand and wave it from side to side, not front to back. Wave the whole hand, not just the fingers. Waving the hand front to back or the fingers up and down means "no", "stop", or "go away'. Holding your hand up with the palm facing forward but no movement means "stop". If you want to point at an object, extend the index finger and use it to point at the object. It is not polite to point at people. Although showing your fist with the thumb up or your open hand with the tips of the thumb and index finger together forming an "O" means "OK", these are stereotypes . Americans understand these gestures, but they are mainly used by actors in movies, not in real life.
Question: If an American to whom you are speaking backs away a little, you'd better _ .
Options: (A) not try to close the gap (B) stop talking with him or her (C) back away too (D) ask him or her what happened
[EX A]:
A