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.
Answer:
C “Herd behavior in humans is frequently observed at times of danger and panic; for example, a fire in a building”
Explanation:
Answer C best supports the answer to part A.
Answer:
The setting is always the first stage of a plot because it can provide important background information about what is happening in the situation.
Explanation:
It basically introduces the story, describing the characters and the place they are in. Hope this helps :)