Which of these is an example of irony from "The Open Window" by Saki? A. Mr. Nuttel is supposed to be undergoing a nerve cure, but his nerves are worse after visiting Mrs. Sappleton.

B. Mr. Nuttel's sister gives him letters of introduction to some of the people who live in the town he visits.

C. Mr. Nuttel is annoyed that Mrs. Sappleton wasn't better prepared for the visit.

D. Mr. Nuttel is afraid of dogs because he was once chased into a cemetery by a pack of dogs.

E. Mrs. Sappleton is annoyed that Mr. Nuttel can only talk about his ailments.
PLEASE HELPPP!!! I'M MARKING BRAINLIST