hint it's not the one that is already chosen. please help

Answer:
Is the second one
Explanation:
The paper about the effects of recycling in public school was written by the student yesterday during class.
Because it has the verb to be in past
Answer:
B
Explanation:
With passive voice, the subject is acted upon by the verb. It makes for a murky, roundabout sentence; you can be more straightforward with active voice.