Answer: C. Parallelism.
Step-by-step explanation: parallelism is a literary device that consists in the repetition of the grammatical structure of different words or phrases in a sentence or paragraph, in order to emphasize an idea or to create an impact in the audience. In the given passage from "Notes of a Native Son" we can see an example of parallelism, because, as we can see, the speaker starts both sentences with "when" and a verb in past form, and then he uses the pronoun "I" and another verb in past.