User: in the (passive, active) voice the subject acts, but in the (passive, active) voice, the subject receives the action.

In the active voice the subject acts, but in the passive voice, the subject receives the action.
Compare:
1. active: The boy is writing the book.
2. passive: The book is being written by the boy.

Ithink the answer is b

The film maker would put sound effects in the film instead of describing the sounds because its a film so most likely sound effects of animals is your answer