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: A tent can be one of the more costly items on your camping equipment shopping list. It is definitely something that you need to consider carefully. By seeing a tent for real you will be able to get a better impression of its size and construction in the traditional shop. However,the _ is that,unless you are experienced,you may miss out some of the details that the manufacturer's promotional material makes clear. Cheap tents often look similar to the quality models they are mimicking ,but you can be sure that they use inferior materials and probably have lower design standards. Shop staff are often campers themselves. That means they usually can give lots of advice. If a shop assistant agrees with your own conclusions,that will be great;if they try to change your decision with a clear and reasonable argument,then that will be worth considering;if they just try to bamboozle ,or even bully,you then walk away. The Internet is a wonderful tool,and so long as you know how to make the most of search engines and put in a little effort,you really have the perfect answer waiting to be found. That answer will be different for every camper as each of us has different needs. Don't be surprised to see your favorite criticized somewhere,but if you see too much criticism,then you had better start thinking again. No problem. You won't have spent anything yet,so think of it positively as a large expense saved. Probably the best approach,if you have the time,is to research tents online and make a short list. Then try to inspect those tents at nearby shops. Then you can make a final decision on where to buy your chosen model based purely on total cost.
Question: You can make use of the Internet to _ .
Options: (A) meet your different needs (B) find the answer for every camper (C) help you out of trouble (D) find your favorite tent
Example Output: D

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: What is the colour you like best? Do you like yellow, orange, red? 61 . Do you prefer greys and blues? Then you are probably quiet, shy, and you would rather follow than lead. You tend to be pessimist . At least, this is what psychologists tell us, and they should know, because they have been seriously studying the meaning of colour preference, as well as the effect that colours have on human beings. 62 . If you happen to love brown, you did so, as soon as you opened your eyes, or at least as soon as you could see clearly. www.ks5u.com
Question: It is an established fact that factory workers work better, harder, and have fewer accidents when their machines are painted orange rather than black or grey.
Options: (A) On the other hand, black is depressing. (B) They tell us, among other facts, that we do not choose our favourite colour as we grow up -- we are born with our preference. (C) The rooms are painted in different colours as you like. (D) If you do, you must be an optimist, a leader, an active person who enjoys life, people and excitement.
E. Light and bright colours make people not only happier but more active.
F. Life is like a picture or a poem, full of different colours.
G. Colours do influence our moods--there is no doubt about it
Example Output:
B