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 Q]: 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
[EX A]: C

[EX Q]: Article: A small, white envelope has peeked through the branches of our Christmas tree for the past 10 years. It has no name, no identification, no inscription . My husband Mike hated Christmas. He hated the overspending and the crazy running around at the last minute for the gifts given in desperation because you couldn't think of anything else. So one year I searched for something special to give Mike. The inspiration came in an unusual way. Our son Kevin was 12 and was on the school wrestling team. Shortly before Christmas, there was a non-league match against a team of poor kids. They were dressed in ragged sneakers, and presented a sharp contrast to our boys in their golden uniforms and sparkling new wrestling shoes. As the match began, I was alarmed to see that the other team was wrestling without helmets . Their team obviously could not afford them. We beat them hands down . Mike shook his head sadly. "I wish just one of them could have won," he said. Mike loved kids and enjoyed coaching football and baseball. That's when the idea for his present came. That afternoon, I went to a sports store and bought a load of wrestling headgear and shoes. I sent them anonymously to the poor team. On Christmas Eve, I placed a small, white envelope on the tree, the note inside telling Mike what I had done and that this was his gift from me. Mike's smile was the brightest thing about Christmas that year. In the years that followed, I sent a group of mentally handicapped youngsters to a hockey game, and a check to a pair of elderly brothers whose home had burned to the ground the week before Christmas. The white envelope became the highlight of Christmas. Mike died last year, but on Christmas Eve I still placed an envelope on the tree. The next morning it was joined by three more. Each of our three children had placed a white envelope on the tree for their dad. Mike's spirit, like the Christmas spirit, will always be with us. By Nancy W. Gavin
Question: Why did Mike hate Christmas?
Options: (A) He found each Christmas was just the same as another. (B) He felt Christmas was ruined by constantly having to rush around. (C) He couldn't see the point in exchanging expensive gifts. (D) He felt the Christmas spirit was lost in commercialized gift buying.
[EX A]: D

[EX Q]: Article: Throughout July 1945, the Japanese mainland, from Tokyo on Honshu northward to the coast of Hokkaido, were bombed as if an invasion were about to take place. In fact, something far more threatening was at hand, as the Americans were telling Stalin at Potsdam. In 1939 physicists in the United States had learned of experiments in Germany showing the possibility of atomic power and understood the coming damage of an atomic bomb. On August 2, 1939, Albert Einstein warned President Roosevelt of the danger of Nazi Germany's advances in development of the atomic bomb. Eventually, the U.S. Office of Scientific Research Development was created in June 1941 and given combined responsibility with the War Department in the Manhattan Project to develop a nuclear bomb. After four years of research and development efforts, an atomic device was set off on July 16, 1945, in a desert area at Alamogordo, New Mexico, producing an explosive power equal to that of more than 15,000 tons of TNT. Thus, the atomic bomb was born. Truman, the new U.S. president, believed that this terrible object might be used to defeat Japan in a way less costly of U.S. lives than an ordinary invasion of the Japanese homeland. Japan's unsatisfactory reply to the Allies' Potsdam Declaration decided the matter. On August 6, 1945, an atomic bomb, carried from Tinian Island in the Mariana in a specially equipped B-29 was dropped on Hiroshima, at the southern end of Honshu. The combined heat and explosion destroyed everything in the explosion's immediate neighbourhood , produced fires that burned out almost 4.4 square miles completely, and killed between 70,000 and 80,000 people, in addition to injuring more than 70,000 others. A second bomb dropped on Nagasaki on August 9, killed between 35,000 and 40,000 people, injured a like number and ruined 1.8 square miles.
Question: What is the main idea of the passage?
Options: (A) An atomic bomb was dropped on Hiroshima and Nagasaki. (B) After research and development efforts, an atomic bomb was born. (C) An invasion was about to take place with the use of the atomic bomb. (D) The birth and use of the atomic bomb ended the Second World War.
[EX A]:
D