Which. it is asking a question
A word that fills in the blank well is sarcastic Sarcasm is a type of irony, called verbal irony, that makes statements about a character that are obviously not true, and are included to add humor to the novel.
It provides a different opinion on topics that people believe in and to better what we do as a society and to better ourselves we must challenge our thinking and be open to new experiences because that is how we learn