The sentence active is: I keep the mayonnaise in the refrigerator.
The sentence passive is: The mayonnaise is kept in the refrigerator (same thing as the question)
If the subject is performing the action, then the sentence is in an active voice. However, if the subject is simply receiving the action, then the sentence is in a passive voice. A helpful tip is to add "by zombies" after the verb. It helps a ton. If you can insert "by zombies" after the verb then it is passive.
it would be D, but the cat is not injured/harmed. It’s A, because trying to keep the small kitten alive is extremely challenging, and emotional, because as you can see in the text, he is immediately pack-bonded to the cat because of the death around him
