I believe the answer would be Rising action because the suspense (the "horrid" descriptions of the chamber) is slowly building up to the climax in which there would be a resolution to the conflict.
(I have read "The Cask of Amontillado" before)
I think the answer is C because it’s the only one that attests to what Mr.Kops has done
Cheung Chau is famous for its many temples, beaches and caves.