How do we identify key vocabulary in a text?

What is the problem with the following sentence: cameron, who has an extreme and unreasonable suspicion of other people and their motives, suffers from paranoia which is a psychological disorder characterized by delusions of persecution or grandeur, was absolutely sure that someone was following him even though he was absolutely alone and hadn't seen a car for miles and miles.

From “the raven” by edgar allan poe but the raven, sitting lonely on the placid bust, spoke only that one word, as if his soul in that one word he did outpour. nothing farther then he uttered—not a feather then he fluttered— till i scarcely more than muttered, “other friends have flown before— on the morrow he will leave me, as my hopes have flown before.” then the bird said, “nevermore.” in this excerpt, what is the speaker saying the raven will do? a. it will certainly die. b. it will leave immediately. c. it will leave the next day. d. it will befriend the speaker.

Which statement is the most accurate summary of this excerpt from leo tolstoy’s the death of ivan ilyich?