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: Mary went out at night. She never forgot the night when she met a robber many years ago. That evening, she was invited to a birthday party which lasted until two o'clock in the morning. Without company Mary walked along the quiet street. Suddenly from the shadow of a dark building a tall man with a sharp knife in his right hand ran out at her. "Good evening, lady," the man said in a low voice, "I don't think you wish to die here." "What do you want?" Mary asked. "Your earrings .Take them off!" Slowly Mary's eyes looked down. She tried to cover her necklace with the collar of her overcoat while she used the other hand to take off both of her earrings, and then she quickly threw them on the ground. "Take them and let me go." she said. The robber looked at her only feeling uncertain. He saw the girl didn't care for the earrings at all, only trying to protect the necklace. He realized the necklace would cost more. So he said, "Give me your necklace." "Oh, sir. It's not worth much. Please let me keep it." "Stop rubbish. Quick!" With shaky hands, Mary took off her necklace. As soon as the robber disappeared, she picked up her earrings and ran as fast as she could to one of her friends. The earrings cost 480 pounds and the necklace the robber had taken away cost only six pounds ten shillings.
Question: Mary never forgot that night because _ .
Options: (A) she was robbed of her necklace (B) she was robbed, but she fooled the robber (C) she had a good time at the party (D) she lost her earrings

Ex Output:
B

Ex Input:
Article: Black has long been praised for its ability to better women's figures and suit every occasion. But the color has a side-effect--it ages the face. While black does give the appearance of a slimmer figure by making the shadows less visible, wearing it next to the face brings out a negative effect. Black clothing can highlight dark lines under the chin, shadows around the eyes and wrinkles on the face. The effect can be as serious as making women feel exhausted, self-conscious and upset. Wrinkles and sunken areas appear deeper and more pronounced, meaning the effect is more obvious in older women. Dark scarves, hats and high-collared coats are apparently particularly likely to emphasize aging features of the face. But fear not. The effect can be _ by a splash of color around the neck--in the form of a scarf or a piece of jewelry--or a low neckline. Famous actress Joan Collins is among the few who can get away with the side-effect. But those who should consider changing their dresses include many European stars. The majority of women who have what is known as a "warm" skin tone, based on yellow and gold colors, will not look young and healthy with black against their faces. Warm skins do not match well with black against their faces as it takes away all the golden glow that they have as a basic skin tone. Black looks for dark things on the face and highlights them, particularly as women age. The good news for those who like black dress is that a simple test can help determine whether they can wear black well: Hold the color up against your face, stand in front of the mirror and look for dark lines under the chin, shadows around the eyes or lines on the face that are highlighted. If there are no dark areas or shadows, you can probably wear black close to your face and look great. Otherwise, change your ways.
Question: According to the passage, wearing black clothes probably _ .
Options: (A) makes the wearer less energetic (B) gives away the wearer's age (C) darkens the wearer's skin tone (D) makes the wearer feel confident

Ex Output:
A

Ex Input:
Article: We live in a sweet world. The average American kid eats more than 20 teaspoons of sugar per day, and adults eat 50% more sugar today than they did in the 1970s. We all know that too much sugar isn't good for you. But did we know it could be dangerous? A team of researchers at the University of Utah used mice to do a study on the bad effects of sugar. They found it could have serious effects on people's health. Sugar is found not only in sweets and candies, but also in many household items like pasta and crackers. During the 58-week-long study, mice were fed a diet containing 25% more sugar. This percentage equals a healthy human diet along with three cans of soda daily. The team found that these mice were twice as likely to die as mice fed a similar diet without the sugar. Though the mice did not show signs of obesity or high blood pressure, male mice produced 25% fewer offspring than the other mice. Scientists often use mice for research because they have a similar genetic structure to humans. "Since most substances that are dangerous in mice are also dangerous in people, it's likely that those physical problems that cause those mice to have increased deaths also work in people,"says study author James Ruff of the University of Utah. Findings from this study show bad effects that are not as noticeable as weight gain or heart problems. Sugar can contribute to long-term changes in the body that can change development and even shorten lives. Cutting sugar out of the American diet altogether may be difficult. But making the effort to control our nation's sugar need will provide for a truly sweeter future.
Question: The study done by researchers aimed at learning about _
Options: (A) the advantages and disadvantages of sugar (B) the bad effects of sugar on people's health (C) the genetic structure of mice (D) American's eating habit.

Ex Output:
B