What is the topic of said essay? I 'd be happy to help.
I am not 100% on this but crest is usually associated with a wave so if there is an answer for a wave I would go with that
Answer:
Who is he speaking to
- Explanation: the guy on his left

Because he look up and then he turn left he talk to that guy near him
Where is the passage I can’t see one :(
Quotations, opinions, and predictions, whether directly quoted or paraphrased.
Statistics derived by the original author.
Visuals in the original.
Another author's theories.
Case studies.