It Is the Afternoon and You Are on the Phone

Multiple Choice

It is the afternoon and you are on the phone with Sally talking about what movie you would like to see tonight.Before you end the call,you agree to meet at the theatre at 8:30.An hour or so later,your roommate Dave sets up a psychology exam study session with you for the next evening at 8:00.As the evening approaches and you are getting ready to go to the movie,you can't remember whether you decided to meet Sally at 8:00 or 8:30.This example best illustrates which of the following?

A) retroactive interference
B) retrograde amnesia
C) implicit memory
D) state-dependent memory