instruction:
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.
question:
Article: College visits are important.Before you commit years of your life and money to a school, be sure you're choosing a place," that is a good match for your personality and interests.You can't get the "feel' of a school from any guidebook, so be sure to visit the campus.Below are a few tips for getting the most out of your college visit. 1.Explore on your own Of course you should take the official campus tour, but be sure to allow time to hang around on your own. The trained tour guides will show you a school's selling points.But the 1dest and prettiest buildings don't give you the entire picture of a college.Try to walk the extra mile and get the complete picture of the campus. 2.Read the Bulletin Boards When you visit the student center, academic buildings and residence hall, take a few minutes to read the bulletin boards.They provide an easy way to see what's happening on campus.The ads for lectures, clubs and plays can tell you what's going on outside the classrooms. 3.Eat in the Dining Hall You can get a good feel for student life by eating in the dining hall.Try to sit with students if you can.Do the students seem happy or stressed? Also, is the food good? Are there adequate healthy options? Many admission offices will give prospective students coupons for free meals in the dining halls. 4.Visit a Class in Your Major If you know what you want to study, a class visit makes a lot of sense.You'll get to observe other students in your field and see how involved they are in classroom discussion.Try to stay after class for a few minutes and chat with the students to get their impressions of their professors and major.Be sure to call in advance to schedule a classroom visit--most colleges don't allow visitors to drop in on class unannounced. 5.Talk to Lots of Students Your campus tour guide has been trained to market the sch001.Try to talk to students who aren't getting paid to impress you.These important conversations can often provide you with information about co1lege life that isn't part of the admission script.Few university officials wi11 tell you if their students spend all weekend drinking or studying, but a group of random(,) students might. For more tips,please go to collegeapps.about.com.
Question: The best way to know about a college in an official campus tour is _ .
Options: (A) to walk around the campus alone (B) to take pictures of the campus (C) to visit the oldest and prettiest buildings (D) to hire a tour guide
answer:
A

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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
answer:
D

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Article: We were talking about engagement when my boyfriend, Jack, had to go to war. I was so afraid of losing him; the only way I could stay sane was to dance. I became very good and critics praised me, but I could feel was the ache in my heart, no knowing whether the love of my life would ever return. And then one day a letter from him came:"I have lost my leg. I am no longer a whole man and now give you back your freedom. It is best you forget me." I made my decision there and then I left the city. When I returned I had bought myself a cane and learned to limp convincingly. I told everyone I had been in a car crash and that my leg would never completely heal again. My dancing days were over. No one suspected the story. And I made sure the first person to hear of my accident was a reporter. Then I travelled to the hospital. They had pushed him outside in his wheelchair. I leaned on my cane and limped to him. I told him he was not the only one who had lost a leg, even if mine were still attached to me. I showed him newspaper clippings of my accident. " There is a whole life waiting for us out there! And I am not going to carry you--you are going to walk yourself." I limped a few steps towards him and showed him what I'd taken out of my pocket." Now show me you are still a man," I said. He bent to take his cane and struggled out of that wheelchair. I could see he had not done it before, because he almost fell on his face. But I was not going to help. Finally he managed it on his own and walked to me and never sat in a wheelchair again in his life. What I showed to him was engagement rings. And I would limp with him for the rest of life.
Question: The author felt ache in her heart though critics praised her dancing because _ .
Options: (A) She wasn't sure if Jack still loved her. (B) Jack became handicapped and couldn't walk (C) Jack asked her to forget about him (D) She was afraid that Jack might die in the war
answer:
D