This is a 9th grade worksheet!

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.

How do i correct this sentence correctly?

He contains the main idea in a paragraph. a. thesis statement b. first sentence c. declarative statement d. topic sentence