He incorporates it to reflect a blues musical timing.
A signature of Hughes's poetic style is his meter. It reflects the rhythms of Harlem's jazz and blues during his time period, as well as black folk rhythms. Hughes's poetry is reflective of the African American culture in, not only its content, but also its rhythms.
The other two options are simply incorrect. He did not writing jingles for depression medication has nothing to do with how he incorporates meter. While the first does indicate the blues sound, it's not completely correct.
Simile B and metaphor could be A or C they both are metaphors.
It means don't be expecting much. When people hold their breath, they are waiting for something to happen. WHen people give the advice of dont hold your breath, they are saying taht there isn't anything going to happen
I believe a motif can contribute to, or become a theme when it gathers larger significance throughout a text. A theme is what you generally write about in a literary piece, so if you develop a metaphor further, it may come to denote a theme of a work.
C is the answer vegetables are good for you