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.
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Question: Article: Certainly no creature in the sea is stranger than the common sea cucumber . All living creatures, especially human beings, have their features, but everything about the little sea cucumber seems unusual. What else can be said about an unusual animal that eats mud, feeds almost continuously day and night but can live without eating for long periods, and can be poisonous but is considered eatable? For some fifty million years, in spite of all its strange features, the sea cucumber has lived on its diet of mud. It is adaptable enough to live attached to rocks by its tube feet, under rocks in shallow water, or on the surface of mud flats. Common in cool water on both Atlantic and Pacific shores, it has the ability to suck up mud or sand and digest whatever nutrients are present. Sea cucumbers come in a variety of color1s, ranging from black to reddish-brown to sand-color1 and nearly white. One form even has brilliant purple tentacles . Usually the creature are cucumber-shaped--where their name comes from--and because they live in rocks, this shape, combined with flexibility, enables them to press into crevices where they are safe from animal eater and ocean currents. Although they have greedy desire for food, eating day and night, sea cucumbers have the ability to become still and live at a low metabolic rate--feeding a little or not at all for long periods, so that the living things in the ocean that provide their food have a chance to increase by a large amount. If it were not for this natural ability, they would swallow all the food available in a short time and would probably starve themselves out of existence. But the most impressive thing about the sea cucumber is the way it defends itself. Its major enemies are fish and crabs. When attacked, it forces all its internal organs in its body out into water. It also removes attached structures such as tentacles. The sea cucumber will get rid of its organs and grow itself again if it is attacked or even touched; it will do the same if the surrounding water temperature is too high or if the water becomes too polluted.
Question: According to the passage, why is the shape of sea cucumbers important?
Options: (A) It helps them to protect themselves from danger. (B) It makes it easier for them to move through the mud. (C) It makes them attractive to fish. (D) It helps them to digest their food.

Answer: A

Question: Article: When people who are nature lovers worldwide wish all humans to realize the importance of their natural surroundings, many Australians are turning caring for the environment into a way of life. Julie, an Australian housewife in Brisbane is one such example. Even though autumn is approaching Australia's Brisbane in April, one can still watch colorful blooming flowers in Julie's little garden, as she tells that in her community,"Each of us has a beautiful yard. The whole community, from children to elderly people, takes care of the environment as if they are taking care of their own garden." "Gardening is the most popular club in our community," she says. "A lot of retired people don't just regularly organize gardening lectures, but also personally visit families in the community to provide gardening training. So you can see that flowers continue to blossom in our gardens throughout the year." Talking about her people's sense of caring for the environment, Julie says when people in the community take along their dog, they always carry a garbage bag to deal with the dog's waste. "In our community, you will never experience the embarrassment of stepping on the dirty waste while you are walking on the grass," says Julie with a smile. "Taking care of the dog's waste can also help to develop children's sense of responsibility!" As to protecting water resources, the Australian government has made strict rules for families. Julie says, "We certainly would not use tap water to water the flowers!" She says almost every family in her community has a huge tank used to store rainwater, which is later used as the resource of all outdoor water use, including car washing and watering the garden. This year, they also asked people to connect the water tank with their toilets.
Question: Why can flowers be seen all year round in Julie's community?
Options: (A) Families are taught how to take care of their gardens. (B) Gardening lessons are often given by professors. (C) The local government provides free gardening training. (D) There is enough rainwater to water the flowers regularly.

Answer: A

Question: Article: The picture-like island is rich in scenic beauty. Barbados sightseeing is a photographer's dream that comes true with numbers of natural wonders, breathtaking scenic views, attractive gardens and miles of white, sandy beaches. There's so many things to see and to do, as you check out some of the places of interest on the island. Historical Appeal Experience Full of historical appeal you'll love the impressive collection of beautiful great houses, landmarks, old churches, and traditional ancient houses some of which may date back to the 16th century. Historic Bridgetown, over 375 years old, capital of Barbados, is located with its color1ful fishing boats and splendid yachts ( ) . Check out the Barbados National and see some of the island's most beautiful homes. Nature Charm Enjoyment Nature lovers will find the Botanical Garden, as well as the wonderful landscapes of the tropical plants and flowers, a welcome addition to their trip. Nature paths, rocky caves and local wildlife will make these tours relaxing. A guided island tour is of excellent value for money as well as informative changes from scenic, fun-filled, historic tours to exciting safari tours. If seeing the island from a different point is what you want to do, then try one of our sea tours, air tours or underwater tours to enjoy what sea plants and animals it can offer. Rental Drive Adventure If you rent a car, here are a few things to remember. The roads, thin and rocky, are sometimes leading nowhere and often unmarked. You might think of some possible dangers. But don't get upset if you get lost-everybody does, even locals, Bajans ! If you make a wrong turn, consider it is a part of the adventure of touring Barbados. You might want to pick up any of the several visitors' guides which include maps. For more detailed information, please contact us by either of the following: Tel: (246) 427-1952 0r 436-7189 Fax: (246) 436-2234
Question: Which of the followings is the sightseeing of Historic Bridgetown?
Options: (A) Traditional houses and rocky caves. (B) Beautiful houses and nature paths. (C) Old churches and splendid yachts. (D) Landmarks and tropical plants.

Answer:
C