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: Argentina's Lionel Messi has won the Golden Ball awarded to the European Footballer of the Year, becoming the sixth Barcelona player to take the award and the first since Brazilian Ronaldinho in 2005. Messi beat last year's winner Cristiano Ronaldo into second place while Barcelona midfielder Xavi Hernandez finished third in the poll results released by France Football magazine early Tuesday. Praised by Argentina great Diego Maradona as his successor, Messi won an unprecedented treble in Spain last season with Barcelona as the Catalan side swept the Champions League, the Spanish title and the Copa del Rey. The 22-year-old Messi, the first Argentine to win the world-famous award, was the top scorer in last year's Champions League with nine goals, including his superb header in the 2-0 victory over Manchester United in the final. Messi, who scored 473 of a possible 480 points, largely controlled the voting and won with a record-margin of 240 points. Real Madrid winger Ronaldo had 233 and Xavi had 170. "Honestly, I knew that I was among the favorites because Barcelona had a fruitful year in 2009," Messi was quoted as saying by the magazine. " _ The Golden Ball is very important to me. All the players who won it were great players, and some great players never won it." Barcelona had three players in the Top 5 with Andres Iniesta taking fourth ahead of former Barca player Samuel Eto'o. In an outstanding season, Messi netted(...) 38 goals in 51 games in all competitions, often leaving defenders in his wake(...) with a combination of speed, extraordinary abilities and his effective left-footed strike. Messi, who led Argentina to next year's World Cup in South Africa, recently signed a new contract with Barcelona through 2016. Messi had a good start to this season - already scoring nine goals - and put on a great display to help his club defeat archrival Real Madrid 1-0 last Sunday. "It won't be easy to confirm after a year like the one we just went through," Messi said. "I hope the next one will reach the same standards. But to win the Golden Ball two years in a row is not an easy thing." (Read by Guanny Liu. Guanny Liu is a multimedia journalist at the China Daily Web site.)
Question: Which of the following is the suitable title?
Options: (A) Messi beats (B) Ronaldinho beats Messi to win the European Footballer of the Year (C) Messi beats Xavi to win the European Footballer of the Year (D) Ronaldinho beats Xavi to win the European Footballer of the Year
Example Output: A

Example Input: Article: Most painters discover a style of painting that suits them and stick to that, especially if people admire their pictures. But Picasso, the great Spanish painter, was like a man who had not yet found his own particular style of painting. He kept on struggling to find the perfect expression till his death in 1973. Some of Picasso's paintings are rich, soft color1ed and beautiful. Others are ugly and cruel and strange. But such paintings allow us to imagine things for ourselves. They force us to say to ourselves, "What does he see that makes him paint like that?" And we begin to look beneath the surface of the things we see. Picasso painted thousands of pictures in different styles. Sometimes he painted the natural look of things. Sometimes he seemed to break them apart and throw the pieces in our faces. He showed us what the mind knows as well as what the eye sees. At the age of 90 he remained as curious about the world as he had been when he was young. That's why people have called him "the youngest painter in the world..
Question: What does the passage mainly tell us?
Options: (A) Picasso didn't find his own style. (B) People can't understand Picasso. (C) Picasso's style of painting. (D) Famous paintings of Picasso.
Example Output: C

Example Input: Article: Mark Twain, the famous American writer and a great master of humor, liked to play jokes on others. But once a joke was played on him. One day Mark Twain was invited to give a talk in a small town. At lunch he met a young man, one of his friends. The young man said that he had an uncle with him. He told Mark Twain that his uncle never laughed or smiled, and that nobody and nothing was able to make his uncle smile or laugh. "You bring your uncle to my talk this evening," said Mark Twain. "I'm sure I can make him laugh." That evening the young man and his uncle sat in the front. Mark Twain began to speak. He told several funny stories and made everyone in the room laugh. But the man never even smiled. Mark Twain told more funny stories, but the old man still kept quiet. Mark Twain continued to tell his funny stories. Finally he stopped. He was tired and quite disappointed. Some days later, Mark Twain told another friend what had happened." Oh," said his friend, "I know that man. He's been deaf for years."
Question: The writer wrote the passage mainly to _ .
Options: (A) tell readers Mark Twain liked playing jokes (B) tell readers a joke played on Mark Twain (C) tell readers Mark Twain was a great writer (D) tell readers how to tell a funny story
Example Output:
B