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 Input:
Article: Wesla Whitfield, a famous jazz singer, has a unique style and life story, so I decided to see one of her performances and interview her for my column. I went to a nightclub in New York and watched the stage lights go up. After the band played an introduction, Wesla Whitfield wheeled herself onstage in a wheelchair. As she sang, Whitfield's voice was so powerful and soulful that everyone in the room forgot the wheelchair was even there. At 57, Whitfield is small and pretty, witty and humble, persistent and philosophical. Raised in California, Whitfield began performing in public at age 18, when she took a job as a singing waitress at a pizza parlour . After studying classical music in college, she moved to San Francisco and went on to sing with the San Francisco Opera Chorus. Walking home from rehearsal at age 29, she was caught in the midst of a random shooting that left her paralyzed from the waist down. I asked how she dealt with the realization that she'd never walk again, and she confessed that initially she didn't want to face it. After a year of depression she tried to kill herself. She was then admitted to a hospital for treatment, where she was able to recover. Whitfield said she came to understand that the only thing she had lost in this misfortunate event was the ability to walk. She still possessed her most valuable asset--her mind. Pointing to her head, she said, "Everything important is in here. The only real disability in life is losing your mind." When I asked if she was angry about what she had lost, she admitted to being frustrated occasionally, "especially when everybody's dancing, because I love to dance. But when that happens I just remove myself so I can focus instead on what I can do."
Question: Which of the following statements is true about Wesla Whitfield's physical disability?
Options: (A) It was caused by a traffic accident. (B) It made her sad and depressed at first. (C) It seriously affected her singing career. (D) It happened when she was a college student.

Ex Output:
B

Ex Input:
Article: Ever tried taking smart drugs to perform better in exams? They certainly work. Before last summer's exam, a few of my mates, merely out of curiosity, took a considerable amount of Modafinil, a drug normally used for narcolepsy . Guess what? While I was feeling sleepy, bored by revision, my mates were more focused. Modafinil is a smart drug that gives a user a feeling of staying awake for hours. It also sharpens the mind, improves memory and helps problem-solving. But it does more than just keeping you awake. It disturbs your mental system, making you desperate to do what you are doing. You just don't want to do anything else but revise all the time non-stop. A recent study discovers that healthy people use smart drugs, like Modafinil, to get down to and complete tasks they have been putting off, because these tasks seem more enjoyable when taking these drugs. This might sound like what a stressed student desires. However, the pills have a range of side-effects. "At present no evidence shows that these drugs are safe in healthy people," as a medical expert puts it, "Ordering online, though easy, is a dangerous way to obtain drugs. You never know what you're actually purchasing. " In my experience, Modafinil changes people's behaviour too. Over those weeks my friends became different people--in turn aggressive, cold. Even eating became "a waste of time" and so did conversation. A BBC survey found that of those who had tried smart drugs before, 92% would do so again. My friends say they'd happily do so without considering the practice a form of cheating. I admit I was curious--but not enough to try it. Seeing the strange behaviour of other users, I feel a little bit upset and scary. Modafinil may promise to change your grades, but it might also change the way you act. Don't say you haven't been warned!
Question: According to the author, his mates took Modafinil for the purpose of _ .
Options: (A) escaping from reality (B) getting better exam results (C) curing their narcolepsy (D) leading an active life

Ex Output:
B

Ex Input:
Article: Most people don't notice I'm polite, which is the point. I am big and look less energetic. Still, every year or so, someone takes me aside and says, "You actually are polite, aren't you?" I'm always thrilled. They noticed. That's the thing. Actually, when we talk about politeness, we usually think of please; thank you; I like your hat; etc. All we need to do is to hear, not to notice. When I was in high school, I read etiquette manuals . No one noticed my politeness except for one kid. He yelled at me about _ . "It's strange that you are always so polite," he said. I took that as praise and made a note to hide my politeness further. Real politeness, I believed, was invisible . It adapted itself to the situation. Politeness leaves door open. I've met so many people whom, if I had trusted my first impressions, I would never have wanted to meet again. Yet many of them are now great friends. One of those people is my wife. On our first date, she told me in detail that she had an operation to remove a cyst from her body. Of course, it killed the chemistry. But when I walked her home, I told her I'd had a great time. We talked a little after that. I kept everything pleasant and brief. Much later, I learned that she'd been having a very bad day in a very bad year. People silently suffer from all kinds of terrible things. The good thing about politeness is you can regard these people exactly the same and wait to see what happens. You don't have to have an opinion. You don't need to make a judgment. Last week, my two-year-old son, Abraham met a foreign woman in the playground. Out of curiosity, I suppose, he asked, "What's your name?" The woman told him. Then he put out his little hand and said, "Nice to meet you!" Everyone laughed and he smiled. He shared with his firmest handshake, like I taught him.
Question: Why do many people think the author is impolite?
Options: (A) Because he doesn't look polite. (B) Because he seldom says polite words. (C) Because he doesn't listen to others politely. (D) Because he doesn't behave politely towards strangers.

Ex Output:
A