单项选择题

Passage 2
Questions 13 to 15 are based on the passage you have just beard.
[听力原文] 13-15
The waltz originated in Germany from the energetic folkdances of the country people. By the mid-15th century the smart town people were trying it and very soon, it had spread throughout the rest of Europe, although parts of Germany and Switzerland forbade it completely! In Vienna the waltz became very fast, with the couples racing each other seven or eight times round the ballroom floor, until they were totally tired. So the police decided to forbid the extreme form of the dance, as it was creating a public disturbance.
However, it was also in Vienna that Lanner and Strauss made their fortunes as band leaders and composers. Strauss’ son. John Strauss. established himself as the "waltz king" in Vienna. Chopin complained that classical music was being ignored in favour of a the waltz, It also complained that pieces by Mozart and Beethoven were being recomposed like waltz to please the public taste. But this did not lower its popularity, which still continues even today.

Why did the police in Vienna decide to forbid the waltz dance（）

点击查看答案&解析