单项选择题

Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now listen to the conversation. Why are the dances approved by the elders of tile tribes

A.Tile elders must give approval to perform sacred dances.
B.The elders make sure the dances are performed properly.
C.The troupe is financed by the elders.
D.The elders have substantial acting experience.