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 Q]: Article: GAOMI, Shandong, Oct.11( Xinhua)--Chinese writer Mo Yan said last Thursday that he was "very surprised" at winning the Nobel Literature Prize. Speaking to reporters at a hotel in his hometown Gaomi city in east China's Shandong Province, Mo said, "(I was)very surprised upon winning the prize because I felt I was not very senior in terms of qualification(among Chinese writers).There are many good writers and my ranking was not so high." "I am very happy," he said."I was having dinner when I received the news.I was surprised." "Thank you for coming all the way to Gaomi.This should be a season of red sorghum, but no such crop is planted any more.I believe none of you have seen the crop," he said. "The Nobel Literature Prize is a very important literature prize, but not the top award.It represents the opinions of the jury( ).I am satisfied with my major works and I still keep writing by hand.My works are Chinese literature, which is part of world literature.They show the life of Chinese people as well as the country's unique culture and folk customs.Meanwhile, my novels described human beings in the broad sense.I wrote in the perspective of a human being.These works stand beyond regions and ethnic groups," he said. "The folk arts and folk culture accompanied my growth and I was influenced by the cultural elements I witnessed through my childhood.When I picked up the pen for literature creation, the folk cultural elements inevitably entered my novels and affected and even determined the artistic styles of my works," he added. Mo's win brought joy to other writers and readers throughout the country as he is the first Chinese national to win the Nobel Literature Prize in its century--long history. Born into a farmer's family in a village in Gaomi, Mo has been known since the late 1980s for his novels such asBig BreastsandWide Hips and Red Sorghum, which was later adapted into a film by director Zhang Yimou.
Question: Mo Yan was surprised at winning the Nobel Prize because he felt _ .
Options: (A) he was not the best writer in China (B) he was not as famous as other writers (C) he was born in a farmer's family (D) he didn't have good education
[EX A]: A

[EX Q]: Article: Language is always changing. In a society where life continues year after year with few changes, the language does not change either. The earliest known languages had difficult grammar but a small, limited vocabulary. Over the century, the grammar changed, and the vocabulary grew. For example, the English and Spanish people who came to America during the sixteenth century gave names to all the new plants and animals they found. In this way, hundreds of new words were introduced into English and Spanish vocabularies. Today life is changing very fast, and language is changing fast too. There are several major language families in the world. Some scientists say there are nine main families, but other scientists divide them differently. The languages in each family are connected, and scientists think that they came from the same parent language. About 3 percent of the people in the world speak languages that are not in these major families.
Question: The early language had _ .
Options: (A) a lot of problems (B) words and easy grammar (C) words but no grammar (D) grammar but not many words
[EX A]: D

[EX Q]: Article: Downing the last drop of an expensive famous brand H2O as well as remembering to throw the empty bottle in the recycling bin, makes you feel pretty good about yourself, _ Even when the bottles are recycles, there are all kinds of other consequences of swallowing bottled water, says Melissa Peffers, the air-quality program manager for Environmental Defense. The containers are often filled in faraway lands, then shipped from abroad, and stored in refrigerators at your local store. Compare that with the influence on environment of turning on your tap, filling a glass, and drinking up! Anyone who is choosing bottled water for health reasons is misguided, says Peffers, "Most bottled water is just tap water." And what comes out of your tap is carefully monitored to follow the strict rules. Consider another fact that bottled water is surprisingly expensive, especially when compared with the alternative, which is almost free, and it is astonishing that prefix = st1 /America's desire for bottled water seems impossible to satisfy, reaching nearly 30 billion bottles a year. "My parents' generation never had bottled water, " says Isabelle Silvrman, an Environmental Defense legal adviser. She has made a commitment to _ . "You don't need to fetch it home from the store, and it's cheaper." She adds. Bottled water's role as a status symbol needs to change, Peffers points out. So when a waiter at an expensive restaurant offers "And what's your drink?" that's no reason to forger your conviction . "Don't be afraid to say, 'I'll have tap.' Say it loud enough that the other tables nearby can hear you," Peffers says, "And then spend that money on a dessert."
Question: According to the author, tap water is_.
Options: (A) as safe as bottled water (B) more likely to be polluted (C) healthier than bottled water (D) less convenient than bottled water
[EX A]:
A