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: 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.
[A]: A

[Q]: Article: Supply and demand is perhaps one of the most basic concepts of economics and it is the backbone of a market economy. Demand refers to how much of a product or service is desired by buyers. The quantity demanded is the amount of a product people are willing to buy at a certain price; the relationship between price and quantity demanded is known as the demand relationship. Supply represents how much the market can offer. The quantity supplied refers to the amount of a certain goods producers are willing to supply when receiving a certain price. The relationship between price and how much of a goods or service is supplied to the market is known as the supply relationship. Price, therefore, is a reflection of supply and demand. The law of demand states that, if all other factors remain equal, the higher the price of a product, the fewer people will demand that product. The amount of goods that buyers purchase at a higher price is less as the price of a product goes up, so does the opportunity cost of buying that product. Like the law of demand, the law of supply shows the quantities that will be sold at a certain price. But unlike the law of demand, the supply relationship shows an upward slope. This means that the higher the price, the higher the quantity supplied. Producers supply more at a higher price because selling a higher quantity at a higher price increases the whole income. Now that we know the laws of supply and demand, let's turn to an example to show how supply and demand affect price. Imagine that a CD of your favorite band is sold for $20. Because the record company's previous analysis showed that consumers will not demand CDs at a price higher than $20, only ten CDs were sold because the opportunity cost is too high for suppliers to produce more. If, however, the ten CDs are demanded by 20 people, the price will then rise. As a result, the rise in price should cause more CDs to be supplied as the supply relationship shows that the higher the price, the higher the quantity supplied. If, however, there are 30 CDs produced and demand is still at 20, the price will not be pushed up because the supply is more than the demand.
Question: We know from the passage that changes in the prices of product cause changes in _ .
Options: (A) income and expense (B) invention and production (C) market and society (D) supply and demand
[A]: D

[Q]: Article: "Just ate chicken feet for lunch. " These were the words I wrote on my blog yesterday. By the next day there were hundreds of comments from my friends. They ranged from "OH MY GOD! That is so disgusting! " to "What were they like?" to "Why can't you eat sandwiches like everyone else?" To Chinese people, chicken feet are a normal snack. To my friends in Britain, the thought of eating a chicken's foot is----well, weird . As weird, in fact, as eating a bullfrog, scorpion , snake, or turtle. But if there are two things I love more than anything else in life, they are: trying new things and food. I arrived in Beijing five months ago. Since then, I've searched for the "weirdest" foods so I can try them, then treat my friends to some "virtual eating" on my blog. One weekend, I went to Wangfujing, Beijing's "snack street". The trip gave me tons of blog material. "I chose a stick with three live, wriggling scorpions on it," I wrote. "And it was pretty good. The scorpion was warm and crispy. The legs did have a tendency to get stuck between one's teeth, however. What's more, I am sure scorpion number two stung me with its tail in revenge ." Next came snake: "A bit like a cross between fish and chicken, with a slightly rubbery texture and meaty taste." Some people were actually angry when I ate turtle soup----especially when I posted pictures showing the poor little guy's head staring sadly up at us from the bowl. "I am never speaking to you again," wrote one (former) friend. Still, I will continue my culinary quest. Next on my list is starfish, though I feel I should have some vegetables too----algae, maybe. So what am I eating, tonight, you may ask. Pizza. Well, a girl's gotta have a break sometimes.
Question: What does the writer like most in life?
Options: (A) Trying new things and food. (B) Traveling. (C) Walking. (D) Shopping.
[A]:
A