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: 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 combinations - the things 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 sad events of our past; and the more we read and learn, the more the number of words that mean something to us increases. Great writers are those who not only have great thoughts, but also express these thoughts in words which appeal powerfully to our minds and feelings. 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 convey 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 will make our speech silly and rude.
Question: The origin of language _ .
Options: (A) is reflected in sounds and letters (B) is handed down from generation to generation (C) dates back to the prehistoric period (D) is a problem not yet solved
[EX A]: D

[EX Q]: Article: I've lived my whole life in Spanish Harlem with my mom, and I never have a father. I have friends who ended up in jail or pregnancy. But Mr.Clark wouldn't let that happen. Mr. Clark worked long hours, making sure I did my work. My grades rose. In fact ,our whole fifth-grade class's scores rose in math and reading. In sixth grade, I entered the gifted program, and Mr. Clark was the teacher. I felt so lucky to have him for a second year ! None of us were surprised when Mr.Clark was selected as Disney's 2004 Teacher of the Year. When he learned he'd won, he said he would draw three names out of a hat; those students would go with him toprefix = st1 /Los Angelesto get the award. But when it came time to draw names, Mr. Clark said, " You're all going." He got donations to fly all 37of us out to Disneyland inCaliforniaand put us at the Hilton. We were there for three days. People were amazed, but Mr. Clark really cared about us. There's no way I can imagine most teachers doing that. No way. But he saw something in us that nobody else saw. On graduation day ,there were a lot of tears. We didn't want his class to end. In 2005,he moved toAtlanta, but we always kept in touch. He started giving speeches about education and wrote a best-selling book based on his classroom rules. In 2007,Mr.Clark took some of us on a trip toSouth Africato deliver school supplies and visit orphanages. It was the most amazing experience of my life. It's now my dream to start a group of women's clubs one day, helping people from all backgrounds. I'm about to become a senior atHarlemRenaissanceHigh School. My grades are beautiful now, and I'm hoping to go to law school eventually. This fall, Mr.Clark will be opening the Ron Clark Academy inAtlanta, a school for kids who have potential but aren't reaching it, kids who are like I was -- until Mr.Clark came along.
Question: Which of the following is the best title for the passage?
Options: (A) How I Improved My Grades (B) Trips with My Teacher (C) Lucky to Have Him (D) My High School Years
[EX A]: C

[EX Q]: Article: "Now I just don't believe that." Surely all of us, at some point, have watched a movie and thought: It's simply badly researched, or, the makers must think we're fools. If movies were completely scientifically accurate, they'd probably be as interesting as a Physics 101 lecture. In real life, there are no explosions in space, gas usually doesn't explode from a lit cigarette, and Bruce Willis / Jackie Chan / Will Smith would most likely be in a coma after getting kicked in the head. Recently, the British newspaper The Daily Telegraph ran a humorous piece on unconvincing tech moments from some top movies. Let's see what _ are all about. Telegraph writer Tom Chivers' first example is from the end-of-the-world movie Independence Day, in which a character comes up with a virus capable of destroying Windows, the computer system the alien spacecraft uses. "It's a good thing they didn't have Norton antivirus," jokes Chivers. It's just one case of a movie that takes a lot of license with its science. Another one Chivers mentions is from Star Wars, where glowing beams of light traveling through space look very impressive. The problem is that in space there are no air particles for the light to reflect off. In reality, they'd not be seen, which wouldn't look so cool on the big screen. Chivers' second piece of Star Wars nonsense is the sound the fighters make in the movies: " the bellow of an elephant mixed with a car driving on a wet road". But sound needs a medium to travel through, like air. In space, there wouldn't actually be any sound at all. Few people would deny that the mind-bending Matrix films make for great viewing, but for Chivers, the science in the movies is a little silly. And finally: as Chivers points out, DAN is not replaceable. But this bit of elementary genetics passed the makers of the 2002 Bond film Die another Day by. In the film the villain has "gene therapy" to change his appearance and his DNA, which is completely impossible.
Question: What does the text mainly deal with?
Options: (A) Plots of some famous movies. (B) Characters in space movies. (C) Popularity of space movies. (D) Mistakes made in some movies.
[EX A]:
D