Letter D. Newgate prison. Wemmick works for Mr. Jaggers (a lawyer who defends criminals). So it makes sense to go to prison and "cultivate" the prisoners so they can hire him again as a lawyer when is needed, that is why he treats prison like a greenhouse (a place where things grow). It's a metaphor.
Answer:
The writer is observing the jogger
Answer:
I don't know what I ought to do
Answer:
I believe that this expression would be classified as hyperbole.
Explanation:
It is a hyperbole because it's a stretch from the truth, they (being "we") didn't actually walk a hundred miles.