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: My first reaction was annoyance. It was Friday afternoon, and I was within an hour of finishing my work for the week. As I was leaving, a nurse brought me one more patient message. The statement read: "Mm. Jones called to say that she has had blurred vision ever since her medical test this morning. " I smiled. Suddenly our tests were causing eye problems. This week my patients had questioned everything. My patient with high blood pressure had stopped coming to her treatment on the advice of an Internet chat room. A woman who had a mental problem was substituting (......) St. John' s word for her medication. Now Mrs. Jones was imagining problems. I rolled my eyes. My second reaction was worry. As I looked through her record, I tried to figure out why she would have blurred vision, but nothing in her record explained the new problem. She' s probably just anxious, I thought. Still, she wouldn't have called if she had been all right. I picked up the phone. What 1 next felt can only be described as delight. Before I made the call, the nurse ran in: Mrs. Jones called. Her vision is fine. Turns out she picked up the wrong glasses when she left the office. The X-ray technician has been having the same problem. I let out a lugh. Mrs. Jones had been right. Her vision had been blurred. Now we know why. Finally I felt shame. I came to realize what Mrs. Jones had taught me. I had first known she was wrong, that her anxiety had _ . Instead, my medical training had clouded mine. Now I feel thankful that Mrs. Jones figured it out before I made a mistake about our relationship. Patients come to me for my help. They pay me to listen, diagnose , treat and talk. That suggests trust; I must remember that, and trust them too.
Question: The writer smiled while reading the patient message because he knew _ .
Options: (A) Mrs. Jones would ask for more tests (B) the patient was being unreasonable (C) the nurse was joking with him (D) Mrs. Jones would call him
Example Output: B

Example Input: Article: One day a student was taking a walk with his teacher. As they went along, they saw a pair of old shoes lying in the path. They were a poor farmer's, who was working in the nearby field. The student turned to the teacher, saying: "we will hide his shoes, and hide ourselves behind those trees, and wait to see what he will do." "My young friend," answered the teacher, "we should never make fun of the poor. Why not put a coin in each shoe, and then we will hide ourselves and watch?" The student did so and they both hid themselves behind the trees. The poor man soon finished his work, and came across the field to the path where he had left his coat and shoes. After putting on his coat, he put his foot into one of his shoes, and felt something hard. Then he bent down to feel what it was, and found the coin. Surprised, he looked at the coin, turned it around and looked at it again. He then looked around, but no person was seen. He put the money into his pocket, and continued to put on the other shoe. His surprise was doubled on finding the other coin. He couldn't control his feelings and fell to his knees, looked up to the sky and expressed his thanks. Then he spoke of his wife, sick and helpless, and his children without bread. He said the help would save them from dying. The student stood there deeply moved, and his eyes filled with tears. "Now," said the teacher, "are you not much happier than if you had hidden the shoes?"
Question: When the student saw the shoes, he wanted to _ .
Options: (A) steal them (B) find their owner (C) play a joke on the owner (D) give the owner some money
Example Output: C

Example Input: Article: The vitamins are named by letters of the alphabet . Vitamin A is needed by the eyes. There is Vitamin A in milk, butter, and green vegetables. It can be kept by the body. Vitamin B cannot be kept. It must be supplied all the time by some of the food we eat. Vitamin C is very important to the body. Without it men's teeth become loose and their arms and legs get weak. Lemons , oranges and tomatoes have Vitamin C in them. Vitamin D is the sun vitamin. We get it in milk and eggs and from sunlight on our skin . There are other Vitamins, but these A, B, C and D, are the most important.
Question: There are many kinds of vitamins, the most important of which are _ .
Options: (A) Vitamin A (B) Vitamin B and C (C) Vitamin D and A (D) Vitamin A ,B,Cand D
Example Output:
D