B because this is where the characters come from and why they are who they are in that present time
ANSWER is option D.
Because if you think about it, the Atlantic is a vast distance, but a puddle really isnt. So comparing such a large distance (the Atlantic) to such a small one (puddle) is understatement.
An oxymoron is contradicting words (deafening silence, jumbo shrimp, etc), a paradox is contradicting ideas (I must be cruel to be kind)