Look out of the window and tell me what you see choose the mood of the unlined verb

"first of all, how could they mistake a man for a sasquatch? " which best explains the purpose of this question (from review 2)? a) to illustrate how much the book uses humor b) to show how unbelievable parts of the story are c) to convince the reader that the novel is poorly written d) to highlight the differences between the characters in the novel