Answer:
Poe is able to create suspense throughout the whole story by talking about the tunnels and how damp and dark they are and the presence of death. The way he writes this story shows dark imagery. You can imagine Montresor taking Fortunato into the tunnels and how dark it is
Steve is defensive especially now that Don has pointed out that nobody knows what he has been doing in the basement. The evidence suggests that Steve is going to get angry at Steve for accusing him of causing all of the strange goings on in the neighborhood. To Don, this anger is more evidence that Steve is up to something.
The 4th one is correct! :)
Drawing names out of a box without anyone else seeing.