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.

[Q]: Article: C.O.P.D blocks air flow through the lungs. It makes breathing difficult. The leading cause of C.O.P.D. is cigarette smoking. Experts at the National Institutes of Health in the United States say there is no cure to the damage to the lungs. Dawn Demeo is an assistant professor at Harvard Medical School in Boston, Massachusetts. She said, "By 2020, C.O.P.D. may be the third leading cause of death across the world." C.O.P.D. is a new name for emphysema and chronic bronchitis . These are the two most common forms of the disease. Many people with C.O.P.D. have both of them. And Doctor Demeo says more women than men now die from the disease. She is the lead author of a study by a team from Harvard's Brigham and Women's Hospital and the University of Bergen in Norway. The new study adds to findings that women may be more at risk than men from the damaging effects of smoking. The team examined results from a Norwegian study of 954 people with C.O.P.D. Inga-Cecilie Soerheim co-wrote the team's findings. Doctor Soerheim says they show that women suffered the same level of C.O.P.D.as men. But the female smokers were younger and had smoked a lot less. The team also looked at two groups among the people in the study. These were people under the age of 60 and those who had smoked for less than 20 years. In both cases, women had more serious C.O.P.D. and a greater loss of lung function than men.
Question: It can be known from the study that _ .
Options: (A) female smokers die faster than male ones. (B) women are more likely to suffer from the damaging effects of smoking than men. (C) O.P.D than women. (D) in the group of people under the age of 60, men suffered more from
[A]: B

[Q]: Article: Researchers in over 80 nations are taking part in a project to conduct a decade-long census of sea life. Scientists presented some of their findings at a recent conference as the project neared its completion. In deep icy waters under Antarctica, scientists found bulbous tunicates, an underground animal, and many newly-discovered creatures believed to be related to starfish and other marine creatures. Elsewhere in the world's oceans, they have recently discovered many kinds of underwater life forms new to science. It is all part of a research effort called the Census of Marine Life. "There are about 2,000 scientists worldwide involved," said Bob Gagosian, President, CEO of the Consortium for Ocean Leadership. Gagosian helps manage the project. "Everywhere they've gone they've found new things," he says. "The ocean basically is unexplored from the point of view of marine living things." Researchers have placed small markers on hundreds of fish and marine animals to track by satellite their migration routes and to discover places where sea life gathers. According to Ron O'Dor, a senior scientist with the Census of Marine Life, knowledge of life on the ocean floor is especially limited. "90% of all the information we have is from the top hundred meters of the ocean," O'Dor states. And he says the sea floor is, on average, at a depth of 4, 000 meters. And so, as some machines dive far below what people have previously seen, scientists are discovering new species of plants, animals and living things. Since the census project began, more than 5,300 new marine animals have been found. Ocean researchers say they hope to catalogue 230,000 species during the census --which some say is only a small part of all the creatures living in the sea.
Question: Why do the researchers place small markers on many marine creatures?
Options: (A) To catch them. (B) To research them. (C) To kill them. (D) To protect them.
[A]: B

[Q]: Article: A popular CCTV host's "improper remarks" that were caught on video at a dinner party have led to an investigation into the incident and a suspension of his programs. The video, released online on Monday, showed host Bi Fujian using vulgar words about Chairman Mao Zedong while singing in the style of Peking Opera, enraging some netizens and causing a stir on the Internet. CCTV said on its micro blog on Wednesday that it will investigate the incident, which it said many have found disturbing. Bi's programs will stop being broadcast until at least Sunday, as his comments in the video have seriously damaged the broadcaster's image, Huaxi Metropolis Daily quoted a CCTV staff member as saying. The CCTV employee said it is uncertain whether the programs can be broadcast again after Sunday, the report added. Bi, 56, is popular for a hosting style that engages the audience. He has hosted the CCTV Spring Festival Gala since 2012, as well as a popular talent show involving Westerners speaking Chinese. The cancellation was the first decision after Nie Chenxi was named CCTV president on Tuesday, the report said, adding that Nie had ordered all staff members to strictly correct work styles. A micro-blogger named Zhou Junchi said that free speech doesn't mean it is OK to defame others, adding that Bi's comments were not proper for a popular host. Cheng Manli, a professor specializing in communication at Peking University, echoed Zhou, saying Bi should pay more attention to his behavior and speech as a public figure. "It does not mean we cannot share our opinions, but using ugly words and sarcasm to comment on Chinese leaders who have passed away is improper," Cheng said. "The actions and words of celebrities are easily broadened in today's Internet era, which is open and can have a huge influence, so it is a must for the public figures to _ the quality of their speech and behavior. Otherwise, their images will be affected, such as the stars who were recently punished for drug use," she said. "Everyone should take responsibility for what he or she says in public and online. It's better, I think, to share different ideas in a normal way," she suggested. But she added that the party in the video seemed private, "so its release is also improper to some extent." The video was recorded by someone sitting on Bi's right, but who it is and why the video was put online is unknown.
Question: According to the passage, CCTV's response when the incident happened was _ .
Options: (A) to change his job (B) to have Bi Fujian fired (C) to look into the matter (D) to make him apologize
[A]:
C