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.

[Q]: Article: Throughout history there have always been people who can make other people laugh. Early clowns often both annoyed and delighted listeners with their comments and songs. They were not the silent performers seen in today's circus rings. Clowns _ when the big three-ring circuses made it impossible for the audience to hear them. Circus clowns give performances in various ways. Walk-around clowns use an animal or something, like a huge rubber hammer, as part of their performance. A carpet clown moves around, talking with the audience and performing while the acts change in the rings. Then there are acrobatic clowns, riding clowns, juggling clowns and others. Everything a clown does looks easy, but it is not. Making people laugh can be hard work. Clowns must be in good physical condition to prevent injuries. Each funny move is carefully timed and well-rehearsed . Most clowns have also been trained as acrobats, jugglers or aerial artists, and many include such skills into their acts. Generally, there are three types of circus clowns--whiteface, auguste and character. Each has a special makeup and clothes. Each has a typical act as well. The neat whiteface is usually a strict, in-charge character who sets up the punch line (the point of a joke) with a partner who is typically an auguste. His facial makeup is neatly detailed in red or black, and his clothes look so loose with a ruffle around the neck. Old circus stories have it that the auguste clown got his name from a German nickname for someone who is clumsy, acting in a careless and stupid way. The auguste wears light-coloured makeup, but white is used around the mouth and eyes, and there's a big red nose. This clown performs a great deal of humour. An oversized suit or baggy trousers allow freedom of movement for all the clumsy acts. He also wears big shoes. Character clowns perform as different characters--cowboys, grandmothers or concert conductors. The most famous character clown, however, is the tramp . Tramps wear different styles of makeup and torn clothes. Some tramp clowns are happy-go-lucky. Others are extremely sad. Still others act like gentlemen who just happen to be out of money.
Question: By saying that clowns "lost their voices", the author means they _ .
Options: (A) became silent to avoid annoying people (B) began to perform silently because of larger audiences (C) realized audience members often spoke another language (D) discovered that three-ring circuses were becoming more popular
[A]: B

[Q]: Article: BEIJING, prefix = st1 /China(CNN) ---China's economic growth dropped to 9 percent for 2008, according to numbers released by the government Thursday --- in line with expectations, but still the slowest rate the nation has seen in seven years. Economists are concerned about what the slowdown means for investment in the future, whether new projects will be undertaken in manufacturing companies and in factories. If not, it will translate into more job losses and erase any optimism about a rebound in 2009. Since 2001, Chinahas been used to double-digit growth as consumers buy Chinese goods. However, the export sector was hit hard in late 2008, with December exports down 2.8 percent. Consumer spending has mostly held up in China, as people there do not carry as much debt as their American counterparts and can continue to spend. Consumer confidence, however, is a problem, said Dong Tao, Asia chief economist for Credit Suisse. Infrastructure is the only thing driving the Chinese economy, Dong said. Tens of thousands of Chinese factories have closed, millions of people are looking for jobs and an untold number of migrants who can't find work may be leaving cities for good because of the slowdown, which would have been unheard of six months ago. Fourth quarter numbers showed growth at 6.8 percent. Goldman Sachs predicted 6.5 percent, down from 9 percent in the third quarter. For all of 2008, Goldman Sachs had predicted 8.8 percent, down from 11.9 percent in 2007.
Question: Since 2001, the slowest rate in annual economic growth china has seen is _ .
Options: (A) 6.8% (B) 8.8% (C) 9 % (D) 11.9 %
[A]: C

[Q]: Article: A single letter written by Albert Einstein was sold for more than $400, 000. But could an e-mail printout or an electronic file reach similar heights? That's the question facing those who deal in the literary artifacts of public figures, as they struggle to work out how to do business in the electronic world where information can be copied and spread out more easily than ever before. "Booksellers, collectors and libraries are already trading in digital objects," Joan Winterkorn, a researcher told people. When Emory University Library bought author Slaman Rushdie's archives in 2006, it received a desktop computer, three laptops, a hard drive and a smart phone along with his paper flies. And the writer John Updike, who died last month, started using computers in the 1980s, Winterkorn pointed out, so his "papers" will include a big store of electronic documents. So far, however, digital archives have been traded as just a small part of a larger, mainly paper-based archive. Indeed, no one is quite sure how much the digital documents of a historical figure are worth. _ " said Gabriel Heaton, a literary manuscript specialist, adding that more tangible digital objects were easier for auctioneers to price and sell, "What about a laptop? For example, the one used by J. K. Rowling to write Harry Potter and the Philosopher's Stone in an Edinburgh cafe has real value," he said. "Because she used it." Even if the hard drive had been cloned by a library, the artifact would still be valuable. Gordon Bell, from Microsoft Research, suggested that prices will actually fall to almost nothing. "Once it's been copied and spread out the value is gone. It's just a piece of memory."
Question: What is the purpose of the example mentioned in Para. 1?
Options: (A) To introduce the topic of the passage. (B) To show that some written letter are of great value. (C) To get readers interested in electronic documents. (D) To tell us to pay attention to public figures, artifacts.
[A]:
A