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: Dear Editor, Recent reports have indicated an additional 1, 400 Marines are being sent to Afghanistan in the coming weeks. This means it costs over $1 million annually on the ground over there. I do place a higher level of blame on the policymakers who send soldiers off to kill and be killed in the field. I think the human race needs to think more about killing. One needs to do the _ : "Are these wars JUST?" I believe that all of our wars since 1945 have been illegal, under international law as well. I suggest that all your readers examine their conscience as it relates to the matter of making war. The fact that many soldiers are motivated by a strong sense of duty does not give them some unqualified moral right to support these wars or any other. It's responsible for all the troops, and the entire population, to determine whether the Afghan or Iraq wars are in accordance with the development of the state. I wish someone would give me one or more logical reasons why we are still fighting in Afghanistan and what our goals are. I certainly don't understand it and neither do many who are more knowledgeable than I. Outsiders have tried unsuccessfully for centuries to conquer Afghanistan, and we seem to be no more successful. We are trying to develop a stable central government, but the country is badly divided into ethnic and tribal groups, and the current government is corrupt . Moreover, we are apparently regarded as undesirable occupiers by many of its people, most notably the Taliban. If we are to continue spending billions every year in Afghanistan and killing hundreds of our people and many of theirs, our government must provide us with a reasonable explanation of why we are doing so and what we can expect to accomplish. George Myers
Question: What caused the author to write the letter?
Options: (A) His conscience of being a citizen. (B) Reports about sending soldiers to Afghanistan. (C) His relatives being killed in the war. (D) Getting no reasonable explanation.
Example Output: B

Example Input: Article: There are millions of used cell phones in the world today. Most of them just lay in our houses without any purpose. Every day dozens of new cell phone models appear. Today, you can find what was regarded as a fantasy yesterday in store and you will buy it tomorrow. But what to do with the old phones, which work well enough and not so old? Just get some money! Simply Sellular is buying almost all models of cell phones: LG, Motorola, Siemens, Samsung, Sanyo, Nokia and many other cell phones. Also they accept phones produced in every country, and in every condition. Simply Sellular can offer a good price for your old cell phone in cash. Their mission is giving you a simple way to get money for an old phone, as simple and profitable, as possible. Also they offer a trade-in scheme to get another model instead of your phone, providing a good service after the sale. Also Simply Sellular works with the so-called 911 cell phone program. So you can donate your cell phone to them to help some people who need it. They know what to do with your old phone ! You can be interested in their recycling programs, where every used cell phone could be easily recycled for a few times.Simply Sellular donates some phones, which are good for refurbish , to people who need it, for example women or military personnel. If the refurbish is impossible they just recycle cell phones. Just think a minute: it's a good deal to get some money for your old cell phone, a good deal to help somebody with your phone and really important to recycle all techniques after use. Working with Simply Sellular you get every possibility ly free. And they will pay you! That's a really good deal!
Question: When you want a new cell phone, you are advised to _ .
Options: (A) keep the old one in house (B) throw the old one into the dustbin to protect your health (C) return the old one to the producer to get some money (D) sell the old one to Simply Selluar on a reasonable price
Example Output: D

Example Input: Article: When I was in primary school, sometimes I would meet a girl of the same age as me. Lisa was never active, but she was always very sweet and nice. In the 5th grade she came to my class. She was absent a lot , and one day I had the courage to ask why. She told me she was sick, and she explained she wore a wig because her medicine made her lose her hair. We left it at that. Anytime Lisa came to class--seldom--I would hang around with her on the playground. I received much ridicule from my friends for this because they thought I was ignoring them for Lisa. My family education taught me to be nice, and I felt Lisa's needs were much more important than others I knew. It had been months since Lisa was in our class, and one day our teacher was crying. She explained Lisa died the day before and would no longer be our classmate. She told us Lisa had fought a battle with cancer for years. I was shocked. Lisa never spoke of her illness as if it could kill her. Well, all these years I have kept Lisa in my mind and heart. When I go through the important events in my life, I think of Lisa. I've had a strong wish recently to find her mother and father. I'd like to tell them that though they never met me, their daughter had a sweet effect on my life. I have no idea what her parents' first names are. I write to your column and hope you can point me in the right direction. Lisa was such a lovely girl. Maybe her parents would be comforted by the fact that after all these years they are not the only ones who remember her.
Question: Why was the author being laughed at?
Options: (A) Because she lost her friends because of Lisa. (B) Because she wore a wig to school. (C) Because she cried in the classroom. (D) Because she always played with Lisa.
Example Output:
D