What is the organization of beats, division of beats or groupings of beats over the passage

Gershwin's "Fascinatin' Rhythm" offers a prime example of this rhythmic feature:

a. syncopation b. atonality c. bolero d. impressionism e. ragtime

One way to bring the reader closer to the subject of a biography is for the writer to present part of the story in a _____

a. sonnet b. dialog c. rhythm d. meter