Answer:
The answer is B
Step-by-step explanation:
Why?
Passive voice is the object+verb+subject. When it says by it means its passive. EXAMPLE- The homework was written by Lilly.
Active voice is the Subject+Verb+Object. EXAMPLE- Lilly wrote her homework.
Here is an example that Passive has been converted to active,
PASSIVE- The tree was planted by John
ACTIVE John planted the tree.
I hope this helps you if not Im glad to re explain it. Do mark me brainalist:)