Answer:
Adjective:
of first importance; main
of the best possible quality; excellent.
(of a number) evenly divisible only by itself and one
Noun:
a state or time of greatest strength, vigor, or success in a person's life
This is the summary that I wrote.
I believe it may be c,because interior monologue is a character's inner thoughts.
Answer:
He hears the old man's heartbeat, and it symbolizes his guilt.
Explanation: