Question

What does Fortunato do to Montresor to make him so full of revenge?

Fortunato insulted Montresor.

Fortunato stole money from Montresor.

Fortunato turned Montresor down for a loan.

Fortunato physically hurt Montresor.

Fortunato overcharged Montresor for some services.

Answer 1

Fortunato insulted Montresor.

Step-by-step explanation:

Answer 2

The main idea of this story is that Montresor is getting revenge on Fortunato. It is never stated exactly what happens, but it does mention how he has faced thousands of injuries from Fortunato. (or something like that) and at the end of the sentence, he states that once he insulted him that was the last straw. (not word for word obviously haha) so the answer is A.