Emotion Might Enhance Memory by Different Mechanisms

Emotion might enhance memory by different mechanisms.Which mechanism below is correctly matched with an example?

A) increased rehearsal - Portia remembers with vivid, almost surreal, clarity everything about the night that her Mom told her that she and Portia's father were planning a divorce.
B) special mechanism - During a test, Ramon tries to recapture the relaxed feeling he had when he studied the material earlier in the week.
C) retrieval cue - Quinn often views the pictures he and his wife took of their joyous honeymoon.
D) increased elaboration - When her boyfriend embarrasses her in front of her co-workers, Serena thinks of other instances in which her boyfriend humiliated her in public.