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:
1. b. ship
2. c. journey
3. for 1. they sailed (only ships sail) and 2. they traveled/sailed to somewhere else, "they sailed in the Atlantic" to "visit new places." And that's usually called a journey
4. a.
Answer:
we are all good
Explanation:
This is the phrase that is repeated throughout the "The story that isn't a story".