instruction:
In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.
question:
Article: LONDON ( Reuters)-- Ecotourism is causing a lot of damage to wildlife and may be endangering the survival of the very animals people are flocking to see, according to researchers. Biologists and conservationists are worried because polar bears, dolphins, penguins and other creatures are getting stressed and losing weight and some are dying. "Evidence is growing that many animals do not react well to tourists in their backyard," New Scientist magazine said. The immediate effects researchers have noticed are changes in behavior, heart rates, or stress hormone levels but they fear it could get much worse and over the long term "could endanger the survival of the very wildlife they want to see". Although money produced through ecotourism, which has been growing at about 10--30 percent a year, has major benefits for poor countries and people living in rural areas, the Swiss-based World Conservation Union (IUCN) and some governments fear not all projects are audited and based on environmentally friendly policies, according to the magazine. "The transmission of disease to wildlife, or small changes to wildlife health through disturbance of daily life or increased stress levels, while not obvious to the casual observer, may translate to lower survival and breeding," said Philip Seddon, of the University of Otago in Dunedin, New Zealand. Scientists have noticed that bottleneck dolphins along the northeastern coast of New Zealand become nervously excited when tourist boats arrive. Similar changes in behavior have been observed in polar bears and yellow-eyed penguins in areas visited by ecotourists are producing smaller babies. Conservationists are now calling for more research into the effect of ecotourism on animals and say the industry must be developed carefully. They also want studies done before new ecotourism projects are started. "The animals' welfare should be very important because without them there will be no ecotourism," said Rochelle Constantine of the University of Auckland in New Zealand.
Question: What's the text mainly about?
Options: (A) Many animals are dying because of lack of money. (B) There will be no ecotourism without animals. (C) Ecotourism could endanger the survival of the wildlife people want to see. (D) More research should be done on ecotourism.
Asnwer: D
answer:
No

question:
Article: Have you ever heard the saying " _ "? Here is how a new teacher made friends with the girls and boys in her class on the first day of school. As the bell rang, the teacher smiled at each girl and boy. Then she said in a quiet voice, "Good morning. How nice it is to have all of you in my class this year. I'd like to know each of you. I am sure we will enjoy working together." Everyone felt that she meant what she said because of her sweet voice and her friendly look. She told the girls and boys her name and wrote it on the blackboard. Then she told them some of the things she liked to do and she was hoping to do with them during the year. Then she said to the class, "Now you know my name and the things I like and I want to know your names and the things you like. Then I will feel that I know you." Could you make friends by doing the same as this teacher did? One way of getting to know girls and boys in your class is to find out more about them. It is often easy to be friends with those people who have the same hobbies with you. You play the same games and go on journeys together. You may find that some new comers in your class miss their old friends and feel strange and lonely. You can invite them to take a walk or to ride bikes with you. You will find many things in common to talk about. Just talking together in a friendly manner is one good way to make friends.
Question: The teacher's sweet voice and her friendly look _ .
Options: (A) made every girl and boy happy (B) told the girls and boys everything about herself (C) showed that she would like to be a friend of the girls and boys' (D) meant she wanted to tell the boys and girls something interesting
Asnwer: C
answer:
Yes

question:
Article: Darek Fidyka, a 38-year-old Bulgarian, had been paralyzed from the chest down for four years after a knife attack. Scientists from Britain and Poland took cells from his nose, transplanted them into his back and re-grew his spinal cord . Now he can walk and even drive a car. The doctors were delighted but said it was the first step in a long journey. The breakthrough came after 40 years of research by Professor Geoff Raisman, who found that cells had the possibility to repair damage to nasal nerves, the only part of the nervous system that constantly re-grows. "The idea was to take something from an area where the nervous system can repair itself and put it into an area that doesn't repair itself," Professor Raisman said. Polish doctors injected the nasal cells into Mr Fidyka's spinal cord above the injury and used some nerves from his ankle to form a bridge across the damaged tissue. The nasal cells appear to have caused the spinal nerves to repair themselves. Professor Raisman achieved this with rats in the late 1990's, but this is his greatest success. "I think the moment of discovery for me was Christmas in 1997 when I first saw a rat, which couldn't control its hand, put its hand out to me. That was an exciting moment, because I realized then that my belief that the nervous system could be repaired was true." Doctors chose the easiest case for their first attempt--it might not work for others. But there is a real sense of hope that an idea once thought impossible has been realized. David Nicholls, who helped provide money for the breakthrough, said information about the breakthrough would be made available to researchers across the globe. "What you've got to understand is that for three million paralyzed people in the world today, the world looks a totally brighter place than it did yesterday," he said.
Question: Why did Professor Geoff Raisman choose cells from the nose?
Options: (A) The nervous system in the nose can repair itself. (B) Cells from the nose can be easily transplanted. (C) The nervous system in the nose has more cells. (D) Cells in the nose are able to re-produce rapidly.
Asnwer: A
answer:
Yes