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: There are many traditions around the holidays. "Holiday traditions" are things that people do every year during a holiday such as Christmas or Thanksgiving. At Christmas, for example, many people put up a Christmas tree or Christmas lights. These are Christmas traditions that have been going on for many years. But there is a "new" Christmas tradition that has become very popular: _ , a TV channel that shows nothing but a large log fire, blazing in a fireplace. People put it on their TV and it makes them feel like they are watching and listening to a crackling fire. It makes them feel calm and comfortable. The origin dates back to 1986 in Canada. At that time, not very many people knew about it or watched the channel. Today, more than three million people watch the firelog channel during the winter holiday season. That year, the firelog channel was created to give the workers in the company that is now called Shaw Cable, a break at Christmas. By running the firelog during the holidays, everyone could go home for a few days and enjoy a bit of time off. At that time, it was only broadcast to people in Edmonton but today it reaches people across Canada and beyond. This year, the Shaw firelog was updated. It is pretty high tech. Although it's still really just a fire log that has been filmed, it has its own Twitter account (@ShawFireLog), its own Facebook page and it even has a computer App so you can see the burning log on a smartphone or a tablet. The Shaw firelog will burn until Jan. 5 on Shaw Cable, channel 222.
Question: What does this passage mainly talk about?
Options: (A) The origin and popularity of the TV firelog. (B) Famous holiday traditions. (C) What makes the TV firelog so popular. (D) The TV firelog today.
Example Output: A

Example Input: Article: Women love shoes! They will sometimes go to look for the perfect pair of shoes to wear only once with the perfect outfit or the fashion of the day. Once worn, these fashionable designer shoes may spend weeks, months, or years in the closet without being worn again until another special occasion comes up. With that said, are expensive designer shoes really worth their cost? Historically, shoes were invented to free feet from sharp rocks, hot sands, and blisters. Shoes were made to be simple and functional, with tough leather soles and straps. As society became more sophisticated , the role of shoes changed; shoes were made to add status to the wearer. Shoe designers began to work on the production of fashion shoes for the wealthy; shoes meant more for show than for practical use or simplicity. Good shoemakers became well known and printed symbols on their shoes, so people could recognize the maker of that particular design. Designer shoes were thus born. Many women develop serious problems with their feet after wearing these designer shoes during the workday and the medical costs for dealing with these problems can get very high. Some popular makers of designer shoes have been working towards combining comfort and practical use into their shoes, but it has been noted that women still go for style, beauty and uniqueness above everything else. So to answer the question as to whether or not designer shoes are worth the cost, the answer is certainly yes, but be smart and invest in a pair of comfortable, not so stylish shoes for the days when you stay outdoors for hours! They can also be very expensive, but I can surely say that they are worth the cost.
Question: When shoes were first made, their main use was to _ .
Options: (A) increase the wearer's image (B) protect the wearer from discomfort (C) make the wearer more noticeable (D) show the simplicity of life
Example Output: B

Example Input: Article: If you are in a town in a western country, you'll often see people walking with their dogs. It is still true that a dog is the most useful animal in the world. But the reason why one keeps a dog has changed Once upon a time, a man met a dog and wanted it to help him in the fight against other animals, and he found that the dog listened to him and did what he told him to. Later people used dogs for hunting other animals, and the dogs didn't eat what they got until their master agreed. So dogs were used for driving sheep and guarding chicks. But now the people in the towns and cities do not need dogs to fight other animals. Of course they keep them to frighten thieves, but the most important reason is that people feel lonely in the city. For a child, a dog is his best friend when he has no friends to play with. For a young wife, a dog is her child when she doesn't have her own. For old people, a dog is also a child when their real children have grown up and left. Now people do not have to use a dog, but they keep it as a friend, just like a member of the family.
Question: _ are more useful than a dog in the world.
Options: (A) No other animals (B) Some animals (C) Many animals (D) A few animals
Example Output:
A