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 class teacher thought that hobbies were very important for every child.She encouraged all her pupils to have one, and sometimes arranged for their parents to come and see the work they had done as a result. One Friday morning the teacher told the class that those of them who had a hobby could have a holiday that afternoon to get the things they had made as parts of their hobbies ready for their parents to see the following afternoon. So on Friday afternoon, while those of the pupils who had nothing to show did their usual lessons, the lucky ones who had made something were allowed to go home, on condition that they returned before five o'clock to bring what they were going to show, and to arrange them. When the afternoon lessons began, the teacher was surprised to see that Tommy was not there.He was the laziest boy in the class, and the teacher found it difficult to believe that he had a hobby.However, at a quarter to five, Tommy arrived with a beautiful collection of butterflies in glass cases.After his teacher had admired them and helped him to arrange them on a table in the classroom, she was surprised to see Tommy pick them up again and begin to leave. "What are you doing, Tommy?" She asked."Those things must remain here until tomorrow afternoon.That's when the parents are coming to see them." "I know they are coming then, " answered Tommy, " and I will bring them back tomorrow, but my big brother doesn't want them to be out of our house at night in case they are stolen." "But what has it got to do with your big brother?" asked the teacher, "Aren't the butterflies yours?" "No, " answered Tommy."They belong to him." "But Tommy, you are supposed to show your own hobby here, not somebody else's ! "said the teacher. "I know that , " answered Tommy, "My hobby is watching my brother collecting butterflies."
Question: What's the best title for this passage?
Options: (A) Important Hobbies (B) Tommy's Hobby (C) Different Hobbies (D) Hobby of Collecting Butterflies
Example Output: B

Example Input: Article: The sharing economy has grown in recent years to include everything from apartment sharing to car sharing to community tool sharing. Since 2009, a new form of sharing economy has been emerging in neighborhoods throughout the US and around the world---- Little Free Library. The libraries are boxes placed in neighborhoods from which residents can withdraw and deposit books. Little Free Libraries come in all shapes and sizes. Some libraries also have themes, focusing on books for children, adults, or tour guides. In 2009, Tod Bol built the first Little Free Library as a gift to his mother, who was a devoted reader. When he saw the people of his community gathering around it, exchanging conversation as well as books, he knew he wanted to take his simple idea further. "I think Little Free Libraries open the door to conversations we want to have with each other," Bol said. Since then, his idea has become a movement, spreading from state to state and country to country. According to Little FreeLibrary.org, there are now 18,000 of the little structures around the world, located in each of the 50 US states and 70 countries in Europe, Africa and Asia. The Internet has helped to spread Little Free Libraries. But an Atlantic article says the little structures serve as a cure for a world of e-reader downloads. The little wooden boxes are refreshingly physical and human. For many people, the sense of discovery is Little Free Libraries' main appeal. "A girl walking home from school might pick up a graphic novel that gets her excited about reading; a man on his way to the bus stop might find a volume of poetry that changes his outlook on life," says the Atlantic article. "Every book is a potential source of inspiration".
Question: How do Little Free Libraries get their books?
Options: (A) The communities bought them. (B) Tod Bol donated them. (C) US government provided them. (D) Citizens shared them.
Example Output: D

Example Input: Article: Tears are nature's way of making us feel more comfortable. When our eyes is made uncomfortable by some small pieces of pollution, or when we are cutting onions, or when we are exhausted and "red-eyes" from over work and late hours, tears form in our eyes to clean and refresh them. Tears are also a sign of strong emotion . We cry when we are sad and we cry when we are happy. And tears seem to be uniquely human. We know that animals also experience emotion fear, pleasure, loneliness, but they do not shed tears. Biologically speaking, tears are actually drops of saline fluid, which is a little bit salty, produced by a gland in the body. Because salt is an important component, tears may actually constitute the most conclusive evidence that the human animal is the end product of a long evolutionary process that began in the sea. And it is clear that, in addition to the emotional benefits, the shedding of tears has a specific biological function as well. Through tears, we can eliminate from our body certain chemicals which build up in response to stress and create a chemical imbalance in the body. Crying actually makes us feel better by correcting that imbalance and making us feel good again. And thus the emotional and the biological functions of tears merge into one and make us even more "human" than we would otherwise be.
Question: According to the passage, human beings may have originated in _ .
Options: (A) the sea (B) the salt (C) chemicals (D) animals
Example Output:
A