We use this expression to say that something is not possible, or that we refuse to do something.
You can use this phrase in ………… language.
A: Are you staying here for the weekend?
B: Staying here is not an option. I need to get away ASAP.
A: We’ve got to win the tender this weekend.
B: Yes, losing is not an option. If we lose, that’s the end of the company.