Given the prefix in- (“not”) and the root suffer (to bear), what does insufferable mean?

unable to endure
seeking to endure
happy to endure
enduring

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.

Which is easier to identify direct or indirect characterization? why

What about the sentence structure in this passage build suspense