Questions 14 to 16 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now listen to the passage. What does the story about the pilot indicate

A．Man knows where the society is going.
B．People don’t welcome the rapid development of modern society.
C．The speaker is worried about the future of our modern society.
D．Man can do nothing about the problem of pollution.