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.

Input: Consider Input: Article: Mr and Mrs Davies had left their Christmas shopping very late. There were only a few days more before Christmas, and of course the shops and streets were terribly crowded, but they had to get presents for their family and friends, so they started out early one morning for the big city, and spent several tiring hours buying the things they wanted in the big shops. By lunch-time, Mr Davies was carrying parcels of all shaps and sizes. He could hardly see where he was going as he and his wife left the last shop on their way to the railway station and home. Outside the shop they had to cross a busy street, made even busier than usual by the thousands of people who had come by car to do their last-minute Christmas shopping. Mr and Mrs Davies had to wait for the traffic lights to turn green, but as Mr Davies could not see very well in front of him, he gradually moved forward into the road without realizing it. Mrs Davies saw this and became worried. Several times she told her husband to come back off the road, but without success. He could not hear her because of the noise of the traffic. Finally she shouted in a voice that could be heard clearly above all the noise, "Henry! If you want to stand in that dangerous position a moment longer, give me the parcels!"
Question: Mr and Mrs Davies, _ , had to buy presents before Christmas.
Options: (A) like everyone else (B) unlike others (C) for once (D) being old

Output: A

Input: Consider Input: Article: Larry was on another of his underwater expeditions but this time, it was different. He decided to take his daughter along with him. She was only ten years old. This would be her first trip with her father on what he had always been famous for. Larry first began diving when he was his daughter's age. Similarly, his father had taken him along on one of his expeditions. Since then, he had never looked back. Larry started out by renting diving suits from the small diving shop just along the shore. He had hated them. They were either too big or too small. Then, there was the instructor. He gave him a short lesson before allowing him into the water with his father. He had made an exception. Larry would never have been able to go down without at least five hours of theory and another similar number of hours on practical lessons with a guide. Children his age were not even allowed to dive. After the first expedition, Larry's later diving adventures only got better and better. There was never a dull moment. In his black and blue suit and with an oxygen tank fastened on his back, Larry dived from boats into the middle of the ocean. Dangerous areas did not prevent him from continuing his search. Sometimes, he was limited to a cage underwater but that did not bother him. At least, he was still able to take photographs of the underwater creatures. Larry's first expedition without his father was in the Cayman Islands. There were numerous diving spots in the area and Larry was determined to visit all of them. Fortunately for him, a man offered to take him around the different Spots for free. _ The diving spots afforded such a wide array of fish and sea creatures that Larry saw more than thirty varieties of creatures. Larry looked at his daughter. She looked as excited as he had been when he was her age. He hoped she would be able to continue the family tradition. Already, she looked like she was much braver than had been then. This was the key to a successful underwater expedition.
Question: In what way was this expedition different for Larry?
Options: (A) His daughter had grown up. (B) He had become a famous diver. (C) His father would dive with him. (D) His daughter would dive with him.

Output: D

Input: Consider Input: Article: The bumpy structure of walnuts is similar to the brain.Some Chinese believe eating walnuts will make them smarter because of that.By the same logic,they believe eating pig brains will increase their intelligence.This kind of food myth is true to Americans,too. Some Americans regularly eat uncooked eggs to keep their minds sharp. Most doctors don't recommend eating either raw eggs or animal brains.Then, what food is good for your brain? Scientists have found a relationship between diet and a healthy brain.It's becoming pretty clear that the right food can increase brain power--help you pay attention, keep you motivated,improve memory, and _ stress.Perhaps even prevent brain aging. The health of your brain depends not only on how much(or little)fat you eat but on what kind it is.Intellectual performance requires the specific type of fat found most commonly in certain fish.Besides oily fish,you should introduce lots of dark green leafy vegetables and color1ful fruits into your diet.Most people lack the special vitamins that these brain foods provide. But you won't do well on your test just because you ate fish the night before. You must eat brain foods regularly.
Question: Which of the following is needed if people want to strengthen their brain power?
Options: (A) Brain-shaped foods (B) Uncooked eggs. (C) Fat of any kind (D) Certain vegetables.
Output: D