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: A great-grandfather has put up his Christmas tree for the 85thtime after his father first bought it from a toy shop. Douglas Hewitt, 85, has celebrated every Christmas with the artificial tree since he was born. His father bought the tree from a toy shop in Sheffield just months after Douglas was born. The four-foot tree remains the centre point of the Hewitt family household during every festive season. Mr. Hewitt, of South Anston, South Yorkshire, said, "It reminds us of my childhood, our children's childhood and our grandchildren and great-grandchildren's after that. They all come and look at it and smile; it's become part of the furniture. If we didn't put that Christmas tree up, it wouldn't feel like Christmas." The tree was passed down to Mr. Hewitt when he married Mavis. Mrs. Hewitt said, "Year after year we have just carried on using that one. You have to be a bit more careful with it now, as it's _ ." Their daughter, June Murphy, also has fond memories of the Christmas tree. She said, "It was in my grandparents' home and then it was given to us. It looks a little thin now, as each time you get it out something else falls off. It's become a bit of a family joke. Each year someone has to comment 'not again!' But it's a Christmas tradition of getting the tree out that we all love. We'd all be sad to see it go, as I think it would be hard to find such a loved replacement." Mr. Hewitt said, "There were a lot more branches on it, and it's lost its feathers that were all along the edge. There were little candle holders on the ends and little legs on it, but unfortunately they've been lost over the years."
Question: Where did Douglas Hewitt get the Christmas tree?
Options: (A) He got it from his father. (B) He bought it from a toy shop. (C) He made it by himself. (D) He cut it down in a forest.
[EX A]: A

[EX Q]: 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
[EX A]: A

[EX Q]: Article: During my visit to my parents, I decided to explore their attic . They have lived in their home in the mountains since 1953, so investigating the attic was a trip down memory lane for me. I climbed the unstable ladder to the dusty, cold third floor. I looked around and noticed a very old basket in the corner, in which I found letters piled high, faded and dirty-untouched there. As I opened each letter, I discovered a new and previously unrevealed page of my parents' lives. My father served in the Army. He wrote about his daily experiences with civilians, German POWs, baths and more. I was drawn to these letters. Each of my mother's letters was sealed with her 1944 lipstick kiss. Daddy wrote that he sealed his return letters by rekissing her lipstick kiss. Oh, how they missed each other! I finished reading six months of the letters and discovered there were at least eleven months missing. Where could they be? Just six weeks after my visit, Daddy became very ill and was hospitalized. He was scheduled for kidney dialysis when I decided to fly to visit him. We discussed the letters. He told me how much receiving those lipstick-kissed letters had meant to him when he had been so far from home. As I left, the thought raced through my mind that tomorrow was Valentine's Day. But I quickly dismissed this thought. My father wasn't in any kind of shape to shop for a valentine. My parents had been married for fifty-six years. My mother would understand that her valentine would just have to be skipped this year. Later that evening, Mother and I revisited the attic in search of the lost letters. Toward the bottom, we discovered an unmarked gold cardboard box. Yes! Here were the long-lost letters! I began looking through them. Lying separate, on top of the letters was the valentine card my father had sent Mother in 1944! The next day,Mother and I visited Daddy in the hospital. I joked with him, saying softly, "Today is Valentine's Day, and I know you have been a little busy lately, but I've got something you covered."I handed him the card. He carefully opened the card, and when he recognized it, his eyes filled with tears. There was nothing lacking that Valentine's Day after all. My father, in a voice shaking with emotion, read the loving message he'd sent to my mother fifty-six years earlier. And this time, he could read it to her in person.
Question: What information do we get from the passage?
Options: (A) My father had been in the army for just one year. (B) I revisited the attic, hoping to find some gold boxes. (C) My father's state of health was nothing serious six weeks after my first visit. (D) The Valentine's card to Mum sent by my father in 1944 was a real treasure to them.
[EX A]:
D