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: Throughout your life, you spend the most time being with or dealing with yourself, but it is exactly yourself that you have the least understanding of. When you are going upwards in life, you tend to think too highly of yourself. When you are going downhill, you tend to have too low an opinion of yourself. It's likely that you think it wise for yourself to know your place and keep yourself from lacking courage to face whatever problem you meet with, in which case your energy and creativity would remain far from enough for your age. To get a thorough understanding of oneself is to gain a correct view of oneself and be a clear-minded realistic person-knowing both one's strength and shortage. You may look forward hopefully to the future but be sure not to expect too much, for dreams can never be fully realized. You may be brave to meet challenges, but it should be clear to you where to direct your efforts. To get a thorough understanding of oneself needs self-appreciation. Whether you hold yourself as a big tree or a thin piece of grass, whether you think you are a high mountain or a small stone, you show a state of nature that has its own reason of existence. If you really admire yourself, you'll have a real sense of self-appreciation which will give you self-confidence. As soon as you gain full confidence in yourself, you'll be enabled to fight and defeat any trouble that will otherwise defeat you. To get a thorough understanding of oneself also requires that you show yourself loving concern about your health and daily life. Unless you know perfectly well when and how to do yourself a favor, you won't be confident and ready enough even to resist the attack of illness. Therefore, just do yourself a favor whenever it's needed. In time of anger, do yourself a favor by giving an exit to it in a quiet place so that you won't be hurt by the anger itself; in time of sadness, do yourself a favor by sharing it with your friends so as to change a sad mood into a cheerful one; in time of tiredness, do yourself a favor by getting a good sleep or some other relaxation. All in all, to get a thorough understanding of oneself is to get a full control one's life. Then one will find one's life full of color1, pleasure and achievement.
Question: Where does our self-confidence come from?
Options: (A) Our self-appreciation. (B) Our courage to fight. (C) Our natural existence. (D) Our strength and shortage.
Example Output: A

Example Input: Article: Once I invited a group of friends round to my house, telling them that I was going to record their speech. I said I was interested in their regional accents, and that it would take only a few minutes. Thus, on one evening, three people turned up at my house and were shown into my front room. When they saw the room they were a bit alarmed, for it was laid out as a studio. In front of each easy chair there was a microphone at head height, with wires leading to a tape-recorder in the middle of the floor. I explained that all I wanted was for them to count from one to twenty. Then we could relax and have a drink. I turned on the tape-recorder and each in turn seriously counted from one to twenty in their best accent. When it was over, I turned the tape-recorder off and brought round the drinks, and for the rest of the evening there was general cheerful conversation--interrupted only by the fact that I had to take a telephone call in another room, which unfortunately lasted some time. Or at least that was how it would appear. For, of course, the microphones were not connected to the tape-recorder in the middle of the room at all but to another one, which was turning happily away in the kitchen. The participants, having seen the visible tape-recorder turned off, paid no more attention to the microphones which stayed in front of their chairs, only a few inches from their mouths, thus giving excellent sound quality. And my lengthy absence meant that I was able to obtain as natural a piece of conversation as it would be possible to find. I should add, perhaps, that I did tell my friends what had happened to them, after the event was over, and gave them the choice of destroying the tape. None of them wanted to--though for some years afterwards it always seemed to be my round when it came to the buying of drinks. Linguistic research can be a very expensive business.
Question: The writer asked his friends to count from one to twenty because _ .
Options: (A) he wanted to record the numbers for his research (B) he wanted to find out whether the tape recorder was working (C) he wanted to make his friends relax before real recording started (D) he wanted his friends to think that was all he wanted to record
Example Output: D

Example Input: Article: Two studies are suggesting that some overweight people do not face an increased risk of developing heart disease. Researchers also found that some individuals of normal body weight have an increased risk of the disease. Being overweight does increase your risk of medical problems, but the studies found that not all heavy people are less healthy than thin people. In one study, American researchers examined medical records from over 5000 men and women. Each person had taken part in a separate study from 1999 to 2004. The searchers found that about 51% of them were overweight or obese. About 32% were obese, but considered metabolically healthy. This means they had no evidence of problems in tests for high blood pressure or other factors linked to heart disease. However, more than 23% of people who were at a healthy weight were unhealthy in two or more aspects Judith WylieRosett helped carry out the American study. She says the finding show that all obese person can still be healthy. She believes that having body fat is not as important as where the fat is found on body. It's reported that twothirds of Americans are considered overweight or obese. A second study is suggesting that fat in the liver may be an important health risk. Norbert Stefan and his team closely examined 314 people.They measured how much body fat each person had, and where it was on the body. To do this ,they used medical imaging tests. They discovered that obese people could have healthy hearts. Their results suggest that fat in the liver is more dangerous than fat in other areas. The results of both studies were published recently in the Archives of Internal Medicine.Professor WylieRosett says the findings don't mean that people shouldn't be concerned about obesity. Experts say there are several diseases linked to obesity that make it more dangerous to be fat than thin. They say people should see their doctor to learn what health risks they may be facing and what behaviours should be changed to improve health.
Question: What was found in 23% of the healthy people examined?
Options: (A) No factors linked to heart disease. (B) They were unhealthy in two or more aspects. (C) High blood pressure. (D) No evidence of problems.
Example Output:
B