Canopy is the upper layer of trees (so basically the tops of trees)
The answer to your question is C. a, a, a, a, b, c, c, c, b. I hope this helps!
B. Flashback. They are talking about a past date which means its definitely a flashback.
This story is not true because the elapsed time between 9:00 pm and 4:00 am is five hours. The author also says the words "must've" which do not indicate an exact answer. I hope this helps!