Which shows a complex sentence with a correctly indicated main clause?
a. the ball park is never interesting, unless we bring bruno along.
b. because we're all minors, no one will rent us a beach house.
c. english class is so exciting, especially when we get to read shakespeare! d. whenever we look at houses, my dad says he doesn't want to move. save

I know I'm three years late so the answer might've changed, but the answer at the time of writing this is D

Explanation: Whenever we look at houses, my Dad says he doesn't want to move.

A main clause is a clause that makes sense on its own and can also exist in a sentence on its own. A Subordinate clause is a clause that does not make sense on its own and cannot be a sentence on its own. The subordinate clause explains or completes the meaning in the main class. Two main clauses are joined by and, but or or. If you want to learn more I suggest looking at major reading sites that go into more detail into the subject.

it is about the use of non animal tested cosmetics.

the president was the speaker and it was a great part of history.

explanation:

video of the national aeronautic space administration's (nasa) coverage of president john f. kennedy’s address at rice university, houston, texas, concerning the nation's efforts in space exploration. in his speech the president discusses the necessity for the united states to become an international leader in space exploration and famously states, "we choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard."