The literal meaning -the poet has to travel miles before he reaches home and sleeps.
Metaphorical meaning of sleep -sleep is a metaphor for death. The poet has to fulfill a lot of responsibilities before he dies.
Dramatic irony means that
B. the audience knows something that the character or characters don't.
An example of dramatic irony is when the viewer of a movie knows that a murderer is upstairs in the baby's room, but the family doesn't, so they go upstairs to check on the baby. Dramatic irony can often be frustrating for readers or viewers.
B. Fear
John was happy that he might meet Carolyn again after three years..but moving on further in to the short story..we notice that she accused him of being insensitive, even thoughtless! So, putting ourselves in his shoes...it's logical that he would feel just a bit of fear. How would she react? Would she view John the same, insensitive and thoughtless?
These are just my thoughts, but I know the answer is B.
...ok...so...what we do is.