Answer: B. Polyrhythms
Polyrhythm is a characteristic of African music that influenced jazz music.
Step-by-step explanation:
Polyrhythm refers to the mixture of two or more rhythms which is played at the same time while moving at the same rhythmic cycle. It requires at least two rhythms which are to be played concurrently and one of these rhythms is an irrational rhythm. It is common in American jazz and also rock music. It is also known as Cross-rhythm.