How does the author use repetition to contribute to the poem's meaning

usually, when there is repetition in a poem or anything, it shows a sing that it is important.

Explanation:

the civil rights act was passed on april 9, 1866 by a republican dominated congress. it was passed over president johnson's veto, in an effort to push back against discrimination of african americans.

answer is b,

"the tracer looks harmless in flight, but the pilot’s bitten lips and white knuckles suggest how dangerous it can be."

it was correct.