【正确答案】 B

【答案解析】[听力原文]17-20
City people usually think they are a lot smarter than country people. They often laugh at simple country ways. But people do not laugh at country music. It is one of the most popular kinds of music in the United States today.
Perhaps it is so popular because it is about simple but strong human feelings and events--love, sadness, good times, and bad times. It tells real-life stories and sounds the way people really talk. As life becomes more and more complicated, it is good to hear music about ordinary people.
Country, sometimes called country-western, comes from two kinds of music. One is the traditional music of the people in the Appalachian Mountains in the eastern United states. The singers usually play guitars, and in the 1920s they started using electric guitars.
At first city people said country music was low-class. It was popular mostly in the South. But during World War Ⅱ, thousands of Southerners went to the Northeast and Midwest to work in the factories. They took their music with them. Soldiers from the rest of the country went to army camps in the South. They learned to like country music. Slowly it became popular all over the country.
Today country music is popular everywhere in the United States and Canada--in small towns and in New York City, among black and white, and among educated and uneducated people. About 1,200 radio stations broadcast country music twenty-four hours a day. English stars sing it in British English, and people in other countries sing it in their languages. The music that started with cowboys and poor Southerners is now popular all over the world.

[解析] 根据常识，可首先排除[C]。[A]和[D]说的都是地点，而[B]说的是具体的内容，故[B]很有可能为答案，这由短文中提到的“it is about simple but strong human feelings and events”可得到验证，故答案为[B]。