Explanation:

Displacement unconsciously transfers emotions associated with a person, object, or situation to another less threatening person, object, or situation. In this scenario, the nurse slammed doors instead of expressing anger towards the promoted nurse or the administrator who made the promotion decision. Sublimation is the unconscious process of substituting constructive activity for unacceptable impulses. Since slamming cupboard doors is not a constructive activity, this choice is incorrect. Conversion involves transforming anxiety into physical symptoms, which is not demonstrated in the given behavior. Reaction formation keeps unacceptable feelings or behaviors out of awareness by displaying the opposite feeling or behavior, which is not the case here.