<em>no it is not a complete sentence because complete sentence requires a verb and a subject..
this sentence has a verb but not a subject so it is incomplete.....</em>
A dependent clause can not express a complete thought and contains a subject and a verb so the dependent clause would be "shouldn't throw stones"
I think the answer is C, because bringing out the characters usually means the person is a good actor.
Sweep is the action word because sweep is the only verb found in the sentence