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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.
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Article: Of all the famous English writers, probably the best known is William Shakespeare. He was born in Stratford-upon-Avon in 1564 on April the 23rd. His father was an important man in town so Shakespeare had a good upbringing. Shakespeare probably went to school (although no records survive to prove this) but not university. He got married when he was 18 to Anne Hathaway and the couple had 3 children. Shakespeare wrote 38 plays and 154 sonnets (a sonnet is a kind of poem). He began working in his home town of Stratford but by 1592 was writing in London. He became rich enough to buy a house in the capital and one in Stratford. He wrote sad stories called tragedies, like Romeo and Juliet, funny stories or comedies, romantic stories and stories about historical figures such as Julius Caesar. Shakespeare died on his birthday in 1616, almost 400 years ago. But why is his work still popular today? His work looked at common human themes, such as betrayal, murder, lust, power, ambition and love. These themes are as much a part of human nature today as they were all those years ago and are the themes we see in modern soap operas and Hollywood films. Even though his theatre, The Globe, burned down in 1613 it was rebuilt in London in 1997 and you can still see his plays performed there today. Shakespeare's influence on the English language can still be felt today. We talk about "fair play", meaning honest behaviour but this phrase was first used by Shakespeare. He coined the phrase "you can have too much of a good thing". And it was Shakespeare who came up with the expression to disappear "into thin air" which we still use today when we lose something. Shakespeare's work has been translated into every major language in the world. And perhaps we'll still be as fascinated by his work 400 years from now as we've been for the last 400.
Question: How old was Shakespeare when he died?
Options: (A) 18. (B) 28. (C) 49. (D) 52.
answer:
D

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Article: Computer power is moving into the "cloud"--networks of data centres that use the Internet to supply all kinds of services, from e-mail and social networks to data storage and analysis. The rise of cloud computing is rapid and causing huge changes in the tech industry. The old guard is suffering: this week's $67 billion merger between Dell and EMC, makers of computers and storage devices respectively , was a marriage forced by the rise of the cloud. Disruptive newcomers are blooming: if Amazon's cloud-computing unit were a stand-alone public company, it would probably be worth almost as much as Dell and EMC combined. The gains for customers have been equally dramatic. Compared with older IT systems, cloud computing is often much cheaper. It adds tremendous flexibility: firms that need more computing capacity no longer have to spend weeks adding new servers and installing software. In the cloud they can get hold of it in minutes. Their applications can be updated continually, rather than just every few months. Individual users can reach their e-mails, files and photos from any device. And cloud services also tend to be more secure, since providers know better than their customers how to protect their computing systems against hackers. But cloud computing makes one problem worse. In the old IT world, once a firm or a consumer had decided on an operating system or database, it was difficult and costly to switch to another. In the cloud this "lock-in" is even worse. Cloud providers go to great lengths to make it easy to upload data. They accumulate huge amounts of complex information, which cannot easily be moved to an alternative provider. Cloud firms also create a world of interconnected services, software and devices, which is convenient but only for as long as you don't venture outside their universe. Being locked in to a provider is risky. Firms can start to tighten the screws by increasing prices. If a cloud provider goes bust , its customers may have trouble getting back their data. These risks have already caused a debate about whether the cloud needs stricter regulation. Some European politicians want to force cloud providers to ensure that data can be moved between them. That is too heavy-handed, because strict rules will inhibit innovation in what is still a young industry. The history of computing suggests that common standards may well appear naturally in response to customers' demands--just as in personal computers, where it is now much easier to use the same files on different systems. In the meantime, a few commonsense measures can reduce the risk of lock-in. Firms that use more than one cloud provider to host their data are less affected. So are those that keep their most important information in their own data centres. Consumers can take precautions, too. Some services are better than others at enabling users to move data between providers (Google does well on this score). Cloud computing promises its users many benefits, but don't mistake it for some sort of digital heaven.
Question: The author takes "the merger between Dell and EMC" for example to show _ .
Options: (A) the influence of cloud computing on computer and storage device makers (B) the miserable sufferings of old computer companies (C) the rapid development of new computer companies (D) the interaction between old companies and newcomers
answer:
A

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Article: If you want to see climate change, head north and keep going until you run out of globe. That is easier said than done. The Arctic is home to few people and covered in ice much of the year. But those who make their way to the icy seas of the Arctic Ocean will see a part of the planet that is warming and changing faster than anywhere else. In September, scientists announced at the National Snow and Ice Data Center that Arctic summer sea ice had fallen to its second lowest level since 1979, and probably long before that. The Arctic has lost an area of ice greater than the area of all U.S. states east of the Mississippi River. And what ice remains appears to be getting thinner and weaker. Nick Toberg and Till Wagner are polar ice scientists who are doing sea ice fieldwork. "There is plenty of data to suggest that the ice is becoming thinner as well as smaller in area," they say. The changes happening in the Arctic are a warning for the entire world . As polar expert Walt Meier puts it, " _ Some scientists worry that Arctic sea ice may be going from a downward spiral to a "death spiral", one from which there is no escape. As more ice melts , more dark open water appears. The darkness absorbs more heat, which speeds up the pace of melting. Until recently, many scientists thought it might take until the end of the century for the North Pole to become completely ice free during the summer. Now some believe it could happen by 2030 or even earlier. "The melting is happening faster in the real world than it has in the models," says Nick Toberg.
Question: Nick Toberg may agree that _ .
Options: (A) the ice in the North Pole will stop melting (B) the ice in the North Pole is melting faster than expected (C) the ice in the North Pole will melt before 2030 or even earlier (D) the ice in the North Pole will not disappear until the end of the century
answer:
B