Coreen Was Taking Her Driving Test at the Department of Transportation

Coreen was taking her driving test at the Department of Transportation office so she could renew her license. When she came upon the last question, she couldn't remember the answer. She paused to think and then started reviewing the previous questions for clues to the answer to the last question. Since that strategy didn't work, she started looking around the office for clues on the wall posters and windows. The poster on the wall nearest to her jogged her memory and helped her to answer the last question. The poster on the wall served as a(n) _____

A) eidetic image.
B) discriminatory stimulus.
C) distracter.
D) retrieval cue.