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: The Mysterious Universe By Ellen Jackson and Nic Bishop How did the universe begin? How big is it? What is dark matter? Cosmologist and expert supernova hunter Alex Filippenko hopes that supernovas can help us answer some of these questions. But first we've got to find them! Join Alex and his team as they go on the hunt with huge telescopes and banks of computers. The Time and Space of Uncle Albert By Russell Stannard What would you say if your uncle asked you whether you would like to go into space? You'd say, "When do I leave?", just like the girl in this story. Gedanken is speeding across the universe trying to help her uncle answer some questions, such as "How big is space?" and "Where does gravity come from?" Along the way she also discovers how to get heavier without getting fat, how to live forever without knowing it, and the strange things that can happen when you go really fast. George's Secret Key to the Universe By Lucy Hawking and Stephen Hawking When George chases his pet pig through a hole in the fence, little does he expect that he will soon be riding a comet around Saturn . But just as he discovers the joys of space exploration with the computer Cosmos, which can open doors anywhere in the universe, everything starts to go wrong. When George's lest-favorite teacher steals Cosmos and traps his friend's dad in a black hole, can George set things right in time? A Child's Introduction to the Night Sky By Michael Driscoll With a telescope or without one, this book can get you started exploring planets, stars and even strange stuff like time, space, and black holes. The universe is a big place, but this book comes with a handy star finder that you can take out with you at night to help you find your way around the stars. Look up and discover the universe!
Question: According to the text, Alex Filippenko _ .
Options: (A) invented huge telescopes (B) is looking for supernovas (C) doesn't need many computers (D) knows a lot about dark matter
Example Output: B

Example Input: Article: How men first learned to invent words is unknown, in other words, the origin of language is a mystery. All we really know is that men, unlike animals, somehow invented certain sounds to express thoughts and feelings, actions and things, so that they could communicate with each other; and that later they agreed upon certain signs, called letters, which could be combined to represent those sounds and which could be written down. Those sounds, whether spoken, or written in letters, we call words. The power of words, then, lies in their association--the thing they bring up before our minds. Words become filled with meaning for us by experience; and the longer we live, the more certain words recall to us the glad and the sad events of our past; and the more we read and learn, the more the number of words that mean something to us increase. Great writers are those who not only have great thoughts but also express these thoughts in words which appeal powerfully to our minds and emotions. This charming and telling use of words is what we call literary style. Above all, the real poet is a master of words. He can _ his meaning in words which sing like music and which by their position and association can move men to tears. We should, therefore, learn to choose our words carefully and use them accurately, or they make our speech silly and impolite.
Question: Where does the real power of the words come from?
Options: (A) From the words themselves. (B) From their characteristics. (C) From their curiosity. (D) From their association.
Example Output: D

Example Input: Article: Every year Chris Brogan posts his three words for a new year. I and many others have followed his lead for the past three or four years. They helped me a lot.My words for last year were"passion","focus"and"delegate"and I stayed true to them.This year,2012,my goals are more personal and less professional. FOCUS Focus is making a repeat appearance on my list this year because I'm too much of a multitasker. The problem is that I have trouble finishing one thing with so many things calling me. When I was working as a writer,all my projects were handled via a schedule,which kept me organized.This year I'm going to have each task scheduled.I'm putting a fitness and housekeeping routine into my schedule. HEALTH I get so busy taking care of everyone else,I forget to take care of myself and this has to change. My health suffers and my weight suffers.I have to get my 1}ealth in check,not only for me-but because I promised my 9 year-old son.I'11 make sure to take time to exercise every day and make good food and lifestyle choices. I miss beingthin,and it's time to get it back. CELEBRATE What good is having it all if I'm not taking time to enjoy it?I have a wonderful job,a happy family,and so much to be thankful for. So how come I spend all my time working? Last summer my family took our first vacation in four years,the best thing I've done for myself and my family in a long time.This year,I'm making sure to take time to enjoy life and celebrate its many blessings. Do you have any words for 2012?
Question: Why does the writer have"health"as one of his three words?
Options: (A) He wants to take better care of others. (B) He's gaining weight and feeling bad. (C) He did not take any exercise in the past. (D) He got the idea from his son.
Example Output:
B