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: Ocean Park If you love the sea, Ocean Park is the place for you! Situated on the south side of Hong Kong Island, this 870,000 square metre educational theme park provides many opportunities to learn about marine life. To start with, the park boasts the Atoll Reef, one of the world's largest aquariums, with about 2,500 fish from nearly 300 different species.  What makes this aquarium special, however, is not just its size, but also its design. The Atoll Reef is built with an observation passageway that circles the aquarium on four different levels. This lets visitors view sea life from a variety of depths and angles. Then there's the Shark Aquarium, a tank with more than 200 sharks from more than 30 species.  Like the Atoll Reef, this unique aquarium is designed to make sure guests get the most out of their visit. Shaped like an underwater tunnel, guests can watch as sharks swim overhead and dive at them from every side. There's also the Sea Jelly Spectacular, an aquarium that houses more than 1,000 jellyfish of all shapes, colours and sizes. And at the park's Dolphin University, visitors can go on educational tours and watch the training of dolphins up close. The park's most popular attraction is the Ocean Theatre, a huge outdoor pool where dolphins and sea lions entertain the visitors. Sometimes a killer whale even takes part in the performance! Although Ocean Parks focus is on the water, the theme park has plenty of other activities, too. For people seeking excitement, there are rides like the Abyss Turbo Drop, a roller coaster ride that takes passengers on a 20-storey drop straight down. There are also exhibits like the Dinosaur Discovery Trail and Bird Paradise. Finally, no trip to Ocean Park would be complete without visiting the park's most popular animals--four giant pandas that were given as a gift from China's central government. 
 Question: Hong Kong Ocean Park is called an educational theme Park because  _  . 
 Options: (A) it offers chances for visitors to enlarge their knowledge of sea life. (B) it provides chances for people to broaden their knowledge of science. (C) it is specially designed to attract the young who are interested in the sea. (D) it has a lot of activities for people to have fun.

Ex Output:
A


Ex Input:
Article: A year ago, I paid no attention to English idioms, though my teacher emphasized  the importance again and again. But soon, the importance of English idioms was showed in an _ experience. One day, I happened to meet an Englishman, on the road, and soon we began to talk. As I was talking about how I was studying English, the foreigner seemed to be astonished, gently shaking his head ,shrugging  his shoulders, saying, "You don't say! You don't say!" I was puzzled, I thought, perhaps this is not a proper topic.Well, I had better change the topic. So I said to him, "Well, shall we talk about the Great Wall? By the way, have you ever been there?" "Certainly, everybody back home will laugh at me if I leave China without seeing it. It was magnificent(,)." He was deep in thought when I began to talk like a tourist guide. "The Great Wall is one of the wonders in the world. We are very proud of it. " Soon I was interrupted  again by his order "You don't say!" I couldn't help asking, "Why do you ask me not to talk about it?"  "Well, I didn't request you to do so," He answered, greatly surprised. I said, "Didn't you say you don't say?" Hearing this, the Englishman laughed to tears. He began to explain, "You don't say actually means really? It is an expression of surprise Perhaps you don't pay attention to English idioms" Only then did I know I had made a fool of myself. Since then I have been more careful with idiomatic expressions. 
 Question: A year ago, I did not pay attention to English idioms because  _  . 
 Options: (A) English idioms were too difficult to master (B) I care little about the teacher's instruction (C) My teacher didn't emphasize the importance (D) I had no interest in English learning

Ex Output:
B


Ex Input:
Article: While we are on the subject of crime, our listener question this week comes from Mohamad Firouzi in Iran. He wants to know about the history of Alcatraz Island and the prison that once operated there. Alcatraz Island is in the harbor of San Francisco, California. It is best known for being a federal prison, which was also called "The Rock." It was once the most famous prison in America. Alcatraz was a military prison from the late eighteen fifties until the nineteen thirties. Then it became a federal prison for the country's worst criminals. These included murderers, bank robbers and kidnappers. One of the main reasons federal officials chose Alcatraz Island to detain these prisoners was because they thought it would be impossible for prisoners to escape. Cold, deep and dangerous waters surround the island. Also, the distance between the island and San Francisco is too far for most humans to swim. No prisoner was ever officially reported to have successfully escaped. However, in nineteen sixty-two, three men broke out of the prison. Each man worked very hard at night for many months to cut through the stone wall of his cell. They made false heads out of paper, paint and hair. On the night of June eleventh, the men placed the heads in their beds to make it look as if they were sleeping. Then, the prisoners escaped through the holes in their cells to get to the water. The men were never seen or heard from again. It is believed that they drowned while trying to swim to San Francisco. The prison closed in nineteen sixty-three because of the high cost of keeping prisoners there and the need for major repairs. The last prisoners were moved to other jails. In nineteen seventy-two, the United States Congress passed a bill creating the Golden Gate National Recreation Area. Alcatraz Island and the old prison are part of this area. Each year, more than one million people visit Alcatraz to see the prisoners' cells and listen to stories about the jail's history. But unlike the prisoners who once lived there, visitors can escape from the prison whenever they want and return back across the harbor to San Francisco. 
 Question: The text mainly tells us  _  . 
 Options: (A) about the history of Alcatraz Island and the prison there. (B) about the history of Alcatraz Island. (C) about a military prison. (D) about the subject of crime.

Ex Output:

A


