Answer:
B. They draw attention to the angels’ unhappiness and envy as the cause of Annabel Lee’s death.
Step-by-step explanation:
The sound devices in the passage reinforce the idea that the angels were envious of the happiness the speaker and Annabel Lee had when they were together. This envy made the angels seek a way to spoil the couple's happiness, coming to the conclusion that the best thing to do was kill Annabel Lee.