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 Input:
Article: The nervous-looking young man had waited for a few moments--outside the jeweler's before he got enough courage to enter. He was warmly greeted by a young assistant. James felt a rush of blood to his face as he explained he would be bringing in his future wife to choose a birthday present. The assistant listened carefully and told him he'd better buy a necklace. He wasn't used to buying jewellery and was a little worried about over-spending. After some discussion as to a reasonable price and the type, the assistant showed him dozens of necklaces and helped him to choose. At last James chose one and left the shop promising to return at five o'clock. When, half an hour later than planned, James did return to the shop with his future wife, Laura, the assistant acted as if she had never seen him before. When she was asked to show them some necklaces, she first brought out some inexpensive ones for them to choose, and then gave them the one she had prepared. A choice was soon made and they went away satisfied. James would certainly come back to buy what he wanted.
Question: A good title for this passage is _ .
Options: (A) A Clever Assistant (B) Buying a Birthday Present (C) How to Choose a Necklace (D) A Brave Young Man

Ex Output:
A

Ex Input:
Article: Some people make art with paint, and others use pencil or clay. But Italian artist Maurizio Savini prefers to use bright pink gum--after it has been chewed. Savini makes huge sculptures of bears and even people out of used chewing gum. Each sculpture requires thousands of pieces of gum. "I like to use chewing gum because it seemed to me a material that can be used in many ways compared with those used by the conventional arts such as painting," Savini says. How does he do it? The process is a lot like working with clay. "I work the chewing gum when it is warm and shape it with a knife," says Savini. Then, he puts a chemical onto each gum sculpture to make the gum stay in place. Savini's sticky art has been shown in cities like London, Paris, and Rome, where he lives today. Savini isn't the only artist to work with gum. His pink sculptures have inspired artists all over the world to get creative with the sticky matter. London artist Ben Wilson paints small paintings onto flat pieces of chewed gum he finds stuck to streets and sidewalks. In Canada, Jason Kronenwald uses different colored gum to make portraits of famous people. Kronenwald seldom chews gum himself. Instead, his friends help chew gum for him while he's working. "At times it can make me _ , but I just pay attention to the colors I need and get the sculpture going," he says. In America, Jamie Marraccini's art depends on color, so he tests different kinds of gum before using them. To find out what color the chewed gum will become once hardened, he lets it age for up to six months. "I've created 30 works totaling more than 35,000 pieces of gum," says Marraccini. That's a lot of gum! So think twice the next time you throw away a wad of gum. Maybe what seems like trash could actually be the beginning of a great piece of art.
Question: Marraccini stores the gum for six months in order to _ .
Options: (A) judge how hard it will be (B) know whether it is still sweet (C) examine what chemicals it contains (D) see what color it will become

Ex Output:
D

Ex Input:
Article: When it comes to human resources, hiring highly-skilled staff is not usually enough for a company to function successfully. Besides the knowledge in their particular fields, employees must always have additional skills-----those of co-operation. In the case that work tasks can only be carried out by communicating with people, accepting common decisions, solving problems, sharing information and helping one another, teamwork skills are important. While some jobs may require talent, the ability to work as a team is learned. There are no complicated formulas ; you don't need to have any special qualities or exceptional mental abilities. Individuals can be effective as a team if they have developed certain behaviors or habits of communication. Many companies, clubs and organizations use team building activities. Team building activities may include a number of teamwork elements. They are aimed at encouraging active participation in task accomplishment while all members have their roles as individuals and are able to co-operate towards a common goal as a team. Many team building activities focus on problem solving and discussing team issues; thus argument as a way to common consensus is encouraged. Team building activities often involve recognition and identification of team member skills, talents, knowledge, and experiences which allow the team members to learn more about each other and fully utilize those skills where appropriate . Many team activities are focused on developing keys to trust during challenging times.
Question: In the author's opinion, which of the following is important for a company to be successful?
Options: (A) Specialized knowledge. (B) Highly-skilled staff. (C) Exceptional talent. (D) Teamwork skills.

Ex Output:
D