That we need to focus on everyone even though its small
id say C. stands both for itself and for something else
D the story uses the symbol of a rabbit as mystic spiritual animal
Your answers:
"Nor did it matter that by his yielding he subjected himself to a deeper agony in the end and gave serious hurt to Irene Scheerer and to Irene's parents, who had befriended him."
and
"There was nothing sufficiently pictorial about Irene's grief to stamp itself on his mind."
A letter from Roderick Usher which gave a nervous agitation in itself was the basic outline that summarizes this passage.
Explanation:
Roderick Usher was one of narrator's companions in his boyhood. It has been several years since he last met Roderick. A letter, which was very personal, was received by the narrator now. In the letter, there was a message about a mental illness that depressed him both, physically and psychologically.
In the letter, the narrator could feel how empty and lonely Roderick was feeling because of the words he used to express his pain.
The statement: An earnest desire to see me, as his best and indeed his only personal friend, a view of attempting some alleviation of his malady (grief) - best describes the passage