Why does Montresor warn Fortunato about the air in the vaults?

a. Montresor wants to make sure that Fortunato does not suspect his motives.
b. Montresor wants to discourage Fortunato from entering the vaults.
c. Montresor wants to avoid responsibility for Fortunato’s death.
d. Montresor wants to warn Fortunato that death is near.

b. Montresor wants to discourage Fortunato from entering the vaults.

b. Montresor wants to discourage Fortunato from entering the vaults.

The correct answer is b. Montresor wants to discourage Fortunato from entering the vaults.

To arrive at this answer, we can analyze the story of "The Cask of Amontillado" by Edgar Allan Poe. In the story, Montresor seeks revenge on Fortunato, whom he believes has insulted him. Montresor pretends to be concerned for Fortunato's health and takes advantage of his pride and curiosity about wine to lure him into the catacombs.

Throughout the story, Montresor acts friendly and invites Fortunato to sample some Amontillado, a rare and fine wine. As they descend into the vaults, Montresor mentions the dampness and the cold, insisting that they should turn back to avoid Fortunato falling ill.

By warning Fortunato about the air in the vaults, Montresor is attempting to discourage him from continuing forward. Montresor knows that Fortunato's arrogance and desire to prove his expertise in wine will likely make him ignore the warning. Montresor seizes this opportunity to carry out his dark plan for revenge, knowing that Fortunato will be unable to resist the temptation of tasting the Amontillado.

So, option b is the correct answer: Montresor wants to discourage Fortunato from entering the vaults.