Passage One The West Indians are a naturally musical people. It was the Trinidadians who invented the steel band, one of the most extraordinary musical inventions ever made. Young Trinidadians made the discovery when they started banging on empty oil drums left behind by the American troops who were in Trinidad during World War II. They found that each drum when hit made a different noise, so they started taming them until everyone noted that bass and trebles could be "drummed". Years later a Trinidadian steel band was invited to Vienna, where they played Mozart to a surprised audience. The beating of drums goes way back to their ancestors in Africa. Africans today still beat drums on special occasions. But in the West Indies steel drums can also be played along with calypsos, a form of Caribbean folk song which was first sung in Trinidad. Calypsos have a strong, simple rhythm. The words are sometimes written down, but the best calypsos are invented by the singer as he goes along, and they have as their subject matter unpopular politicians, exciting events, and cricket victories. Competitions are held during Trinidad’s Carnival festivities and the singer who gets the most votes is given the title"King" or "Queen" Calypsonian. American musicians have also had a strong influence on the island ever since U.S. troops were there in the war. Trinidadians visit Louisiana and bring back the latest music from America. Carnival was brought to Trinidad by the French. It is the main event in the Trinidadian cale,dar starting after Christmas and reaching its most exciting moments during the last two days before Ash Wednesday. Then all work stops and crowds move through the streets, dancing and singing and wearing all kinds of different clothes. There are groups dressed as policemen or characters from the Bible, animals, birds, and insects. Some walk on tall stilts(long sticks), swaying above the crowd. From the first sentence of the passage, we know that the West Indians ______

A. like the music about nature
B. sing songs in a natural Way
C. are good at music without special education
D. frequently play their music in the countryside