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: Police today stepped up a murder probe after a father was killed by a gang. They attacked him with an axe.   John Purcell, 40, suffered fatal injuries in the incident in Easterhouse,prefix = st1 /Glasgowon Saturday evening... moments after he had said goodbye to his children. His youngest son John, 11, was being comforted by his mum Elizabeth Malcolm after witnessing the street horror. The father-of-three was attacked around 10:30 inEasterhouse Road.   Young John said, "My father was struck from behind with something that looked like a chopper." John, his sister Danielle, 15, and bother William, 19, have been left _ and placed a floral tribute at the attack scene in memory of their dad. Elizabeth Malcolm said, "We are all in shock about what had happened. When he left here he usually turned left down the road, but for some reason on Saturday he went in the opposite direction which is where the gang members always hang out."   "We have been apart for a number of years, but John always remained close to his children and this has hit them hard," she said.   Police officers initially sealed off the area for forensic examination but later allowed his  s to lay flowers. Following a post-mortem , Mr. Purcell's death is being treated as murder. He had been taken by ambulance to GlasgowRoyalHospitalbut died from his severe injuries. Detective Chief Inspector John Riggans, who is leading the investigation, appealed for witnesses to come forward and said, "Inquiries are at an early stage and we are trying to establish the circumstances surrounding the attack scene for the moment." 
 Question: Which of the following is NOT true according to the passage? 
 Options: (A) John Purcell was attacked around 10:30 pm in Easterhouse Road. (B) John Purcell had three children, but he did not live with them. (C) Before the murder, John Purcell went out and turned left down the road. (D) Detective Chief Inspector John Riggans did not catch the murderer.

Ex Output:
C


Ex Input:
Article: $? While the 2008 Olympics were the first to be broadcast entirely in HD, the 2012 Olympics are the first to broadcast in HD as well as 3D. Sean Taylor, a spokesperson for Panasonic - provider of some of the technologies - said it effectively, "Each Games, from a technology perspective, tries to have a first. London will be the first HD and 3D Games." The games were first televised in Berlin in 1936 and played on big screens about the city. Then came the first games to enter households (strictly in London that is) in 1948, followed by the first internationally televised games during the 1960 Olympics in Rome. And ever since, that feeling of physically standing in the crowd and watching these mighty contestants has only gotten clearer, more defined. Now, they more literally than ever actually compete in your living room. SS A _ is presented as the London games celebrate both the Industrial Revolution (a.k.a. the birth of pollution) and a spirit of committed environmentalism; London will be the first to actively measure its own carbon footprint during these games, designing a stadium and accommodations that cut-back on negative emissions when at all possible. They are also shooting for a world record via the "Javelin," designed specifically to keep as many exhaust pipes at bay as humanly possible. 
 Question: Where does this text probably come from? 
 Options: (A) a novel (B) a report (C) a diary (D) an essay

Ex Output:
B


Ex Input:
Article: When I was at University I studied very hard. But a lot of my friends did very little work. Some did just enough to pass exams. Others didn't do quite enough. Fred Baines was one of them. He spent more time playing than working in the library. Once at the end of the term, we had to take an important test in chemistry. The test had a hundred questions. Beside each question we had to write "True" or "False". While I was studying in my room the night before the test, Fred was watching TV. Fred usually worried a lot the night before a test. But on that night he looked perfectly calm. Thenhe told me of his plan. "It's very simple. There are a hundred questions and I have to get fifty correct to pass the test. I'll just toss the coin to decide the answers. That way, I'm sure I'll get half the questions right." The next day, Fred came happily into the exam room. As he sat tossing a coin for half an hour he marked down his answers. Then he left, half an hour before the rest of us. The next day, he saw the chemistry professor in the corridor. "Oh, good," he said to the teacher, "Have you got the result of the test?" The teacher reached into his pocket and took out a coin. He threw it into the air, caught it in his hand and looked at it. "I'm terribly sorry, Fred," he said, "You failed!" 
 Question: This story mainly wants to tell us  _  . 
 Options: (A) chemistry is really hard to learn (B) there are many questions for students to prepare. (C) good exam results really need studying hard (D) tossing a coin can not always decide the result

Ex Output:

C


