What is the question here, I’m confused on what you’re asking
My rule would be no rules because the school is to strict.
Status-quo means the existing state of something. A common example used for this is like saying a rich person is happy with their status-quo. They are happy with how things are going.
Avant-garde means a couple of different things depending on if you use it as a noun, verb, adjective, etc. It basically refers to ideas or proposals that are extremely creative, innovative. A good way to think of this word is the expression "think out of the box." Avant-garde ideas are NOT common or plain.
I think that the answer is C, but I am not 100% sure.
