Which Situation Involves the Concept of Priming

Which situation involves the concept of priming?

A) Bill studied his notes before taking an exam and subsequently passed.
B) Grace read an article about her favorite actor, and later, when choosing a movie, she unknowingly chose to watch a movie with that actor.
C) Javier needed to memorize a list of items to pick up at the grocery store, so he associated each item with something on his office desk.
D) Mary Ellen lost her keys and later retraced her steps until she found them.