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: I am sure that everybody in his/her life has used computers. Nowadays you can feel their presence everywhere at home,at school,at work and they certainly make life easier.On the other hand,there are people who can't work with them. Anyway,I believe their presence is a good thing. Life with them seems easier, less difficult and more comfortable You can use them to choose your meal,to withdraw your money, and also save your time,because these operations are all controlled by computers. Therefore you can hardly imagine the modern world without them;the whole planet seems to be one big computer society. Nevertheless,problems can often appear in this area, too.To have a computer means you have to be quite well-off and have the necessary skills to use it.However,think about questions like "Are computers so available for everyone, or rich and poor people,for people from villages and people from cities. Aren't they too expensive?Is everyone able to learn how to use them and not everyone has the chance to access and work with them,how could everything in the future be dependent on them?"Therefore,I think our society will be split into two parts.One part will work with them and enjoy the benefits that computers can bring and the other part will be pushed out and will actually be far behind the other group. Another question that bothers me is,on the one hand,computers are important and good things in our life,but they aren't everything.They are good as a help at school,quite often as entertainment,especially for young people,as an necessary tool to help in research etc,but I think we shouldn't be so dependent on them,because computers are only machines and machines can't feel anything be human and sympathetic,and every action performed by computer can be interfered with another person,which could cause these machines to crash or work badly. In conclusion,I would like to say I am not against computers.I use computers,too,but people should be wary all the time.
Question: The writer's main purpose in writing the passage is _
Options: (A) to encourage us to use computers in our society (B) to advise us to say no to computers from now on (C) to remind us to care about the problems that computers bring. (D) to inform us that the computer has become a necessary part of our life
Example Output: C

Example Input: Article: Language is always changing. In a society where life continues year after year with few changes, the language does not change either. The earliest known languages had difficult grammar but a small, limited vocabulary. Over the century, the grammar changed, and the vocabulary grew. For example, the English and Spanish people who came to America during the sixteenth century gave names to all the new plants and animals they found. In this way, hundreds of new words were introduced into English and Spanish vocabularies. Today life is changing very fast, and language is changing fast too. There are several major language families in the world. Some scientists say there are nine main families, but other scientists divide them differently. The languages in each family are connected, and scientists think that they came from the same parent language. About 3 percent of the people in the world speak languages that are not in these major families.
Question: The early language had _ .
Options: (A) a lot of problems (B) words and easy grammar (C) words but no grammar (D) grammar but not many words
Example Output: D

Example Input: Article: From my earlier memory of Mother it somehow seemed quite natural to think of her as different, nor of everyday things as Father was. In those days he was a young-looking man. He did not hesitate to make friends with children as soon as they were able to talk to him and laugh at his stories. Mother was older than he was. She must have been a woman of nearly forty, but she seemed even older. She changed little for a long time, showing no indication of growing old at all until, towards the end of her life, she suddenly became an old lady. I was always _ about Mother's age. She never had birthdays like other people, nor did anyone else in our family. No candles were ever lit or cakes made or presents given in our house. To my friends in the street who talked delightfully about their birthday parties, I would repeat my mother's words that such celebrations were only foolish. "Nothing but deception," she would say. "As though life can be marked by birthdays. It's deeds, not years, that matter." Although I often repeated her words and even prided myself on not having birthdays, I once could not help asking Mother when she was born. "I was born. I'm alive as you can see, so what more do you want to know?" she replied, so sharply that I never asked her about her age again. In so many other ways Mother was different. Whereas all the rest of the women I knew in the neighboring hoses took pride in their housewifely abilities, their new furniture, the neat appearance of their homes, Mother regarded all those things as of little importance. Our house always looked as if we had just moved in or were about to move out.
Question: How did Father impress the author?
Options: (A) He liked writing stories. (B) He loved making friends. (C) He was a very young man. (D) He was popular with children.
Example Output:
D