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.

Example Input: 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
Example Output: No

Example Input: Article: In spring, you may have seen white foam on a green tree or other plants. As a matter of fact, the foam is where young spittlebugs live. These insects are protected by the foam, and they usually don't do much harm to the plants. As we all know, in late summer, a mother spittlebug lays her eggs on the plant. The babies will hatch in spring. After they come to the new world, they begin to eat juice from the plant. The babies eat more juice than their bodies need for food. The extra juice mixes with a special waste that the spittlebugs produce. When this fluid is released, it mixes with the air, forming bubbly foam. What is so great about having a foam home? The space inside is so wet that it can keep the bugs' soft bodies from drying out. And the foam tastes bad, so it keeps away most animals that would eat the bugs. Some birds will reach their heads through the foam to find the bugs. Wasps and ants might eat them, too. But most of the bugs stay safe inside the foam. Once the bugs have grown into adults, they stop making foam. They leave their homes and jump from plant to plant in search of food. The adults look a little like tiny frogs. For this reason they are also called froghoppers. If you see some foam on a plant, you might want to take a careful look inside. Gently push some of the foam aside with a small stick. Deep inside you may see a few insects eating plant juice. They might also be making more foam. Be sure to push the foam back after a moment to cover the insects and keep them safe. Soon the spittlebugs will grow up and leave their foam home. They will join the other insects in the grassland.
Question: The eggs of spittlebugs _ .
Options: (A) are laid in late spring (B) have to pull through a winter before they hatch (C) are protected by mother spittlebugs all the time (D) will be eaten by ants
Asnwer: B
Example Output: Yes

Example Input: Article: In the dark and damp market,Chen ShuChu,near her sixties,owns a stall that her father left her.The stall,called YuanJin Vegetables,is her everything.Chen earns only a little money by selling vegetables,but she has donated about $321,550 to help poor children. In March,Forbes magazine named her one of the 48 great philanthropists from the AsiaPacific region.A month later,TIME magazine selected the year's top 100 influential people and Chen was one of them.Although she has received many honours and rewards,Chen only cares about her vegetable stall and whether her regular customers buy her vegetables or not."I do not place great importance on money.When I donate to help others,I feel happy and I can sleep well at night." Chen said. Chen's ability to donate such a great deal of money has led many to ask,"How can a vegetable seller donate so much?" "Spend only on what you need,and you'll be able to save a lot of money!" Chen said.Chen leads a very simple life.All she needs is food and a place to sleep.Everything else is a luxury .Neither does she have any desire for material gains nor any form of enjoyment.Work,she says,is her enjoyment."I love my work.If I don't how would I be able to work 16 hours a day?"Being the first to arrive and last to leave,she has been given the title of "market manager." She is content with what she has.She feels that as long as she lives the life she wishes for and does the things she wants,that is good enough.
Question: In Chen's eyes,a luxury is about _ .
Options: (A) any form of enjoyment (B) doing what she wants (C) gaining material benefits (D) everything except food and a bed
Asnwer: D
Example Output:
Yes