B, C, D don't make any sense. Foreshadowing makes the most sense.
Foreshadowing is giving clues to the reader on what's most likely/or certainly going to happen in the book.
"These violent delights have violent ends"
"Violent ends"
Referring to death, the montagues/capulets have always hated each other & always start brawling with one another. I guess you could say they had a "violently delightful friendship." But most of the characters die in the play/book, so that's what the literary device/quote indicates. It's foreshadowing that there will be more deaths to come in the book.
Hopefully this helped! :)
