Answer:
A.The narrator knows he will abandon Fortunato in the vaults.
Explanation:
The Barrel of Amontillado, by Edgar Alan Poe, is the narrative of the story of a man imbued with the desire for revenge and to think on the wall his dislike, Fortunato. In this excerpt, Fortunato is already trapped in the wall of the coffers and the narrator is amused by this situation, but intends to leave Fortunato there as part of the planned revenge.
The short story brings us to the realization that the protagonist will take revenge on a disaffection; in the middle, there are signs of what vengeance will be like; in the end, the protagonist exerts his revenge slowly. The reader follows the narrative doubting the outcome announced exactly because it is extremely simple and cruel and, in the end, line after line the protagonist simply delights listening to the last gasps of his disaffection.