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