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.

Example Input: Article: Last August, Joe and Mary Mahoney began looking at colleges for their 17-year-old daughter, Maureen. With a checklist of criteria in hand, the Dallas family looked around the country visiting half a dozen schools. They sought a university that offered the teenager's intended major, one located near a large city, and a campus where their daughter would be safe. "The safety issue is a big one," says Joe Mahoney, who quickly discovered he wasn't alone in his worries. On campus tours other parents voiced similar concerns, and the same question was always asked: what about crime? But when college officials always gave the same answer -----"That's not a problem here,"-----Mahoney began to feel uneasy. "No crime whatever?" comments Mahoney today. "I just don't _ it." Nor should he: in 1999 the U.S. Department of education had reports of nearly 400,000 serious crimes on or around our campuses. "Parents need to understand that times have changed since they went to college," says David Nichols, author ofCreating a Safe Campus. "Campus crime mirrors the rest of the nation." But getting accurate information isn't easy. Colleges must report crime statistics by law, but some hold back for fear of bad publicity , leaving the honest ones looking dangerous. "The truth may not always be serious," warns S. Daniel Carter of Security on Campus, Inc., the nation's leading campus safety watchdog group. To help concerned parents, Carter promised to visit campuses and talk to experts around the country to find out major crime issues and effective solutions.
Question: It is often difficult to get correct information on campus crime because some colleges _ .
Options: (A) receive too many visitors (B) mirror the rest of the nation (C) hide the truth of campus crime (D) have too many watchdog groups
Example Output: C

Example Input: Article: One Halloween a little boy and his friend went out for a fun night of trick-or-treating. At first everything was great. They were getting lots of candy as they went from house to house, but then they saw a house which they hadn't been to before. It was a very spooky house. Being young and brave, they decided to go up to the door and knock. After all, scary houses might have the best candy! As they walked up the long winding path, they saw things that chilled them to the bone! They heard sounds that frightened them. Maybe they should turn back. But the little boys, being very brave, just wanted to see what was in that house, so they went on, not deterred by the things they heard or saw. As they slowly made their way up to the door, they imagined what might be inside. Maybe it would be a witch or maybe a ghost! After knocking several times, the door slowly creaked open. To their surprise, a monster slowly came out to greet them. They were so scared that they couldn't move! What could they do? Then the little boy had an idea. He said, "Trick or treat!" Then the big scary monster, much to the kids'surprise, reached over and brought out a huge bowl of the best candies they had never seen. Wow, the kids thought, this was great! It turned out that the house was decorated for Halloween, and the big scary monster was just wearing a costume, just like the kids. Since they were the only kids, and were brave enough to go to the scary house, they could take as much candy as they wanted.
Question: This passage is _ .
Options: (A) a funny Halloween story (B) mainly about two brave kids (C) mainly about a spooky house (D) mainly about the custom of Halloween
Example Output: A

Example Input: Article: Bill and his family has been living in the six-family building for years. All the neighbors got along fairly well with each other until recently. An old man and his wife used to live on the second floor. Bill's mother and the old lady were good friends. Unfortunately the lady died last month. Her husband could not live alone, so he had his grandson move over and live with him. The grandson has become a problem to all the neighbors, especially to Bill's family. The walls of the building are thin and he is noisy. Bill is used to peace and quiet but the young man likes to listen to the radio late at night. Sometimes friends of his visit and they make a lot of noise. That is too much for Bill's family. Bill's mother once asked the old man politely if he was able to sleep well at night, but obviously the man didn't understand what she meant. If he did and spoke to his grandson, the young man obviously didn't listen, since things haven't changed any. Everyone in Bill's family agrees that something must be done though they don't want to hurt the kind old man.
Question: Bill's family got angry because _ .
Options: (A) the old lady had died (B) a young man moved in (C) the old man could not live alone (D) the grandson made a lot of noise
Example Output:
D