I need it asap please

When grendel speaks of unferth and says "i could crush him like a fly" what literary device is being used

What is wong with this 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.

Which statement correctly analyzes how the passages work together to create a central idea?