I feel like it is more of a hyperbole than a metaphor because you are not saying New York never sleeps just like when you say “what happens in Vegas stays in Vegas” it is more of a hyperbole than a metaphor.
She is saying that in reading the story if the reader begins to have feeling for the character then they will invest much more to understanding the meaning of the story
I would say B. Only Ranger B is correct because introducing an invasive species has never helped the environment ever, plant or animal. The Asian Carp, the Asian Chestnut Tree...