Multiple Choice:
Select the choice which best identifies the given passage from "The Cask of Amontillado."

"I had told them that I should not return until the morning, and had given them explicit orders not to stir from the house. These orders were sufficient, I well knew, to insure their immediate disappearance, one and all, as soon as my back was turned.”

a. Irony/sarcasm

b. Setting

c. Characterization

d. Tragic resolution