Answer:
D. It creates a sense of empathy and understanding.
Explanation:
From the poem, we can see that the use of repetition as used by the poet creates a sense of empathy and understanding.
As the speaker repeats those sentences, we see an exclamation mark at the end of each showing that the speaker tends to lament in empathy. The speaker speaks like he is the one the incident happened to. He kept saying, "I know..."
Below is an excerpt:
I know what the caged bird feels!
I know why the caged bird beats his wing
Till its blood is red on the cruel bars;