Answer:
C. The wild parties, masks, and hidden faces create a mood of secrecy and unease.
Step-by-step explanation:
Edgar Allen Poe's "The Cask of Amontillado" is a short story that revolves around the revenge plan of Montresor on his friend Fortunato. The story ends with the successful 'killing/punishment' of Fortunato after he gets walled-in by Montresor.
The scene takes place during a wild carnival night which adds to the irony of the whole story. Yet, it also adds to the secretive nature of the plan, the 'other side' of how Montresor presents himself to be. While on the one hand, the carnival represents the festive and merry mood of the scene, it also acts as a foil and occasion for Montresor to successfully lure Fortunato into his trap- that of inviting him to taste-test his acquired wine. Montresor admits that despite his plans of hurting his friend, he "was so pleased to see him" when he approached him.
Thus, the correct answer is option C.