Read the following excerpt from james baldwin's "notes of a native son":

but i knew that it was folly, as my father would have said, this bitterness was folly. it was necessary to hold on to the things that mattered. the dead man mattered, the new life mattered; blackness and whiteness did not matter; to believe that they did was to acquiesce in one's own destruction. hatred, which could destroy so much, never failed to destroy the man who hated and this was an immutable law.

which best explains how the use of parallelism in this excerpt supports baldwin's purpose?

a. it emphasizes what baldwin thinks matters and doesn't matter.
b. it uses contrasting ideas in the same sentence to emphasize their differences.
c. it employs a story-like structure to draw attention to theme of hatred.
d. it repeats the word folly to emphasize the mistakes white people have made.