Which shows a complex sentence with a correctly indicated main clause ?

A. The ballpark is never interesting, -unless we bring Bruno along-

B. English class is so boring, -except when we get to read Shakespeare!-

C. -Because were all minors,- no one will rent us a beach house.

D. Whenever we look at houses, -my dad says he doesn't want to move.-

I put dashes around the clauses that were bold in the actual question, so those are the clauses the sentence is focusing on