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: Seven tips to good table manners Whether it's a dinner at a friend's house or a business meeting over lunch, we judge people based on their table manners. But what can you do if your kids do not behave themselves at the dinner tables? The following are seven tips to set your children on the road to good table manners: *Look for the good. Instead of pointing out all the things your children do wrong, point out what they do right. Please say, for example, "I am so proud of you. It was wonderful the way you served yourself." *Don't turn dinner into an unpleasant "lecture time". That will turn kids off not only manners, but dinner, and you, too. *Check your own example. Don't show up for dinner in just your underwear unless you want your kids to do the same. *Don't always consider your kids lazy and dirty ones. Instead, point out the behavior in a tender way. For example: " It' s a good idea to unfold your napkin, so if food falls you won't dirty your clothes." *Teach your kids good manners in the form of a game. One night a week, try to have a formal dinner. Try dressing up, serve a special meal, and expect more formal manners. That will help improve their sense of manners. *Make kids understand part of the tradition. Invite guests over and let kids help serve them. This helps them indirectly learn about table manners. *Try dining out once in a while. Fast food restaurants aren't counted. Try a nice restaurant and let kids order their own food, pay the bill and give the tip.
Question: Which of the following should parents do to help their kids learn good table manners?
Options: (A) Try dining out in fast food restaurants once in a while. (B) Point out what's wrong with the kids' behavior at dinner. (C) Keep telling the kids how to behave themselves at dinner. (D) Improve kids' sense of manners by having a formal dinner at times.
Example Output: D

Example Input: Article: In many romantic movies or TV shows one scene always appears. It involves a handsome man standing outside a young woman's window, singing a love song to her to win her over. However, trying to woo a female with songs is not just something that humans do. A few animals sing love songs as well. Birds and elephants are romantic but the latest animal to _ a female might surprise you--it is the humble mouse. You may find it odd to find out that mice sing. We do not hear them because the frequency of their voice is so high. In fact, scientists have known for some time that male mice make special sounds to females, but it has always been assumed that the sounds are produced instinctively and randomly, with little thought going into the process. But new research suggests otherwise. When male mice with different voices were put in a cage together, scientists found that they would gradually change their pitches to sound like one another. But when a female mouse was put in the cage with two males, one male would change his pitch to match the other. "It was usually the smaller animal changing the pitch to match the larger animal," professor Erich Jarvis, leader of the study, from Duke University, US, told BBC News. This ability, known as vocal learning, is rare in the natural world. It had been thought to be limited to some birds, such as parrots--as well as whales and dolphins. The latest findings challenge the long-held opinion that mice cannot learn to adapt their voices. Scientists also found the part of the brain that controls the mice's singing ability. In the experiment, they damaged the cells in this part of the mice's brain and found that the animals couldn't keep their songs in pitch or repeat them any more. This also happened when the mice became deaf. Jarvis said that this finding had changed his understanding of the way mice make sound. "In mice we find that the pathways that are at least modulating these vocalizations are in the forebrain, in places where you actually find them in humans," he said. "If we're not wrong, these findings will be a big boost to scientists studying diseases like autism and anxiety disorders."
Question: Which of the following is proven wrong by the latest discovery?
Options: (A) The frequency of mice's voice is so high that it's impossible for humans to hear it. (B) When male mice make special sounds to females they can't control the sounds. (C) Birds and elephants are both romantic animals that are good at expressing love. (D) Animals like mice are smart even though they often make sounds randomly.
Example Output: B

Example Input: Article: If you dream of going to someplace warm to escape the cold winter weather, a trip to a recently discovered planet would certainly warm you right up. The planet, named OCLE-TR-56b, has temperatures of more than 3,000 degF. "This is the hottest planet we know about," says Dr. Dimitar Sasselov, a scientist who led the discovery team, "It is hot enough to have an iron fog and to rain hot iron droplets " The new planet is 30 times farther away than any planet discovered by scientists before. It is in the Milky Way but it is not in our solar system The new planet moves around a star much like our sun, however. Scientists discovered the planet by using a new planet-searching method, called"transit technique" They were able to catch sight of the planet when it moved in front of its star, causing the star's light to dim .Scientists compare the method to discovering the shadow of a bee flying in front of a searchlight 200 miles away. "We believe the door has been opened wide to go and discover planets like Earth," says Sasedlov.
Question: We can infer from the passage that _ .
Options: (A) there is iron on the new planet (B) we could go to the new planet in winter (C) the star could block our view of the new planet (D) scientists are studying the weather on the new planet
Example Output:
C