Answer:
D.
Step-by-step explanation:
"The Negro Speaks of Rivers" is a poem written by Langston Hughes. The poem is about a speaker who is claiming that he knows river.
The poet has used the repetitive technique to create steady rhythm to describe the steady flow of river. The poet is using repetitive technique to ensure that the readers get to understand the speaker's view towards the bodies of water.
Therefore, option D is the correct answer.