If You Were Asked, "What Were You Doing on Monday

Multiple Choice

If you were asked, "What were you doing on Monday afternoon of the third week in May, two years ago?" your reply might be, "Come on, how should I know?" However, if you were reminded, "That was the day Stacy had her automobile accident," you might remember immediately because of this

A) memory trace.
B) eidetic image.
C) retrieval cue.
D) morpheme.