What is the definition of situational irony?

Question

a situation in which an author makes fun of human flaws and imperfections
a situation in which the reader knows something the characters do not know
a situation in which what happens is the opposite of what was expected to happen
a situation in which a character says the opposite of what he or she really means

Answer 1

The definition of situational irony is a situation in which what happens is the opposite of what was expected to happen.