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.

Article: She might not be paid, but Carnegie Mellon University's newest staff member does all that a typical receptionist can do: give directions, answer the phone -- and even gossip about her life. University officials revealed what it considers to be the world's first robot receptionist with a personality of her own. The blond receptionist, named "Valerie," puts on a headset and interacts with people by talking about her boss, her psychiatrist and her dream. Valerie, the roboceptionist, sits in a custom-made booth at the entrance of a computer science hall. With her ability to distinguish motion, she greets visitors as they come near. Type in a question on a keyboard and she gives directions around the Pittsburgh campus and provides visitors information about the weather. More than that, she tells stories about her life. From her booth, passers-by often can hear her talking on the phone. She recognizes when someone is in front of her and remembers their characteristics. She can change between tasks from talking on the phone to answering a question. Valerie, however, does have her limit. She is a drum-shaped mechanical device with a digitally lively face that appears on a computer display. Visitors have to type on a keyboard to communicate with her. And she understands only simple questions. Eventually her creators would like to install face recognition so people don't have to insert an identity card for her to remember them. And people won't have to type their questions on a keyboard if they can solve the problem of voice recognition in a crowded hall. Valerie will tell the story of a robot living in a human world.
Question: According to the passage we know that _ .
Options: (A) Valerie looks like a real beautiful woman (B) Valerie can do whatever a human receptionist can't (C) Visitors can have a conversation with Valerie (D) Valerie doesn't understand of the visitors' questions sometimes
D

Article: Some time ago, a friend of mine punished his three-year-old daughter for wasting a roll of gold wrapping paper. Money was tight , and he became infuriated when the child tried to decorate a box to put under the Christmas tree. Nevertheless, the little girl brought the gift to her father the next morning and said, "This is for you, Daddy." He was embarrassed by his earlier over-reaction, but his anger flared again when he found that the box was empty. He shouted at her loudly, "Don't you know that when you give someone a present, there's supposed to be something inside of it?" The little girl looked up at him with tears in her eyes and said, "Oh, Daddy, it's not empty. I blew kisses in the box. I filled it with my love. All for you, Daddy." The father was crushed. He put his arms around his little girl, and he begged her for forgiveness . My friend told me that he kept that gold box by his bed for years. Whenever he was discouraged, he would take out an imaginary kiss and remember the love of the child who had put it there. In a very real sense, each of us as parents has been given a gold container filled with unconditional love and kisses from our children. There is no more precious possession anyone could hold.
Question: Why did the father punish his daughter?
Options: (A) Because the girl had torn his favourite paper. (B) Because the girl was wasting a roll of gold wrapping paper. (C) Because the girl took the box under the Christmas tree away. (D) Because the father was in bad temper .
B

Article: Sure,you've watched extreme pet sports on Animal Planet. But did you know that there's a whole world of athletic activities for dogs right in our area? There are some reasons for considering taking part in such activities. Such sports strengthen the close feelings between dog and owner,and also benefit your pup's body and mind." Dogs that are tied with chains often have behavioral problems," says Lee Morgan. "They love to go out and play as much as we do." Of course,many of these sports require some amount of practice,and some breeds are simply better at certain activities than others .But all dogs can participate in the following games. Frisbee Dogs This sport requires you to throw as many Frisbees as your dog can catch in a 60second time period. The further out your dog catches the Frisbee,the more points you rack up. Extra points are awarded if your pet catches the Frisbee while it's still in the air. Mid Atlantic Disc Dogs (MADDogs) hosts local competitions and offers informal instruction in local parks or even in people's backyards. Flyball Dogs The sport has been around since 1970s.Flyball is a relay race with four dogs in a team. Each must jump four hurdles spaced with 10 feet apart and then land on a springloaded box that shoots out a tennis ball. The dog must then catch the ball and run back over the four hurdles. Once that's done,the next dog can go. The first team that successfully completes the course wins the competition. There are a number of local teams,including 4 Dog Night,which holds classes for beginners and intermediate players and is always looking for new team members. The Beltway Bandits is another team,based in Leesburg,that hosts private classes and competitions.
Question: Dogs that are always tied with chains often have behavioral problems because _ .
Options: (A) there are no close feelings between dog and owner (B) many of them lack enough sports or exercises (C) there are no local athletic activities or sports for dogs (D) dogs love to go out and play as much as human beings
D