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.

Example Input: Article: Several years ago I worked in an office, which had a locust tree growing outside the window. It had grown into a tall tree and must have been there for a long time. The tree blocked the view and made the office seem dull, unfortunately this happened to be the room assigned to me and I was depressed by it for quite some time. When the first spring came, everything was green except the locust tree. Secretly, I was very happy because I had thought it had died. One morning when I opened the window for fresh air, I unexpectedly smelt a familiar sweet scent floating into my office but I couldn't name it. Suddenly, I realized it was the locust tree! The tree that I thought dead was blossoming in full glory. From then on, I usually came to the office very early to see dew forming on the locust tree blossoms and every year was eager to see spring again. During summer, the green leaves provided shade protecting me from the harsh sunlight, but allowing enough light in to make it pleasant. In autumn, the leaves turned into many different color1s. Its beauty touched my soul. Many times I thought to take photos but never did. Then I had to leave in a hurry. Later in life it became a great regret that I had not done so. Actually, many times in our lives, we think we own something, therefore we don't cherish it. We don't feel regretful until we lose it one day! Moreover, sometimes, we have to accept the things we don't want and need to discover the hidden beauty to find unexpected joy!
Question: The author of the passage employed a writing way _ .
Options: (A) of holding and releasing (B) that released first, then held (C) that held first, then released (D) that was not holding or releasing
Example Output: C

Example Input: Article: The fact that blind people can see things using parts of their bodies apart from their eyes may help us to understand our feelings about color.If they can sense color differences, then perhaps we, too, are affected by color without knowing it.Salesmen have discovered by experience over a long period of time that sugar sells badly in green wrappings, that blue foods are considered not agreeable to the taste, and that cosmetics should never be packed in brown.These discoveries have grown into a whole subject of color psychology. Some of our preferences are clearly psychological.Dark blue is the color of the night sky and therefore connected with calm, while yellow is a day color connected with energy and encouragement.Experiments have shown that colors, partly because they are connected with psychology, also have a direct effect on people's mind.People in bright red surroundings show an increase in breathing speed, heartbeat and blood pressure.Red is exciting.Pure blue has exactly the opposite effect; it is a calming color.Being exciting, red was chosen as the signal for danger, but a closer study shows that a bright yellow can produce a more basic state of alarm, so fire engines in some advanced areas are now rushing around in bright yellow colors that stop buses, trucks and cars.
Question: The passage tells us that salesmen have _ .
Options: (A) tried colors on blind people (B) found out that colors affect sales (C) developed a special subject of color psychology (D) discovered the relationship between color and psychology
Example Output: B

Example Input: Article: It was the summer of 1965. Deluca, then 17, visited Peter Buck, a family friend. Buck asked Deluca about his plan for the future. "I'm going to college, but I need a way to pay for it," Deluca recalls saying. "Buck said, 'you should open a sandwich shop.'" That afternoon, they agreed to be partners. And they set a goal: to open 32 stores in ten years. After doing some research, Buck wrote a check for $1,000. Deluca rented a storefront in Connecticut, and when they couldn't cover their startup costs, Buck kicked in another $1,000. But business didn't go smoothly as they expected. Deluca says, "After six months, we were doing poorly, but we didn't know how badly, because we didn't have any financial controls." All he and Buck knew was that their sales were lower than their costs. Deluca was managing the store and to the University of Bridgeport at the same time. Buck was working at his day job as a nuclear physicist in New York. They'd meet Monday evenings and brainstorm ideas for keeping the business running. "We convinced ourselves to open a second store. We figured we could tell the public, 'We are so successful; we are opening a second store.'" And they did--in the spring of 1966. Still, it was a lot of learning by trial and error. But the partners' learnasyougo approach turned out to be their greatest strength. Every Friday, Deluca would drive around and handdeliver the checks to pay their supplies. "It probably took me two and a half hours and it wasn't necessary but as a result, the suppliers got to know me very well, and the personal relationships established really helped out," Deluca says. And having a goal was also important. "There are so many problems that can get you down. You just have to keep working toward your goal," Deluca adds. Deluca ended up founding Subways Sandwich, the multimilliondollar restaurant chain.
Question: Deluca opened the first sandwich shop in order to _ .
Options: (A) support his family (B) do some research (C) help his partner expand business (D) pay for his college education
Example Output:
D