单项选择题

Questions 19 and 20 are based on the following passage. At the end of the passage, you will be given 10 seconds to answer the questions.
Now, listen to the passage.

According to the speaker, what is the distinctive characteristic of good jazz musicians

A.They must be rich in the knowledge of harmony and rhythm.
B.They should be enthusiastic when composing music.
C.They should follow their intuition to let the music come out naturally.
D.They would perform the music with guidance of formal theory.