After receiving a poor grade on her exam, Mrs. Smith later becomes irritable and snaps at her roommate during dinner. She does not address her frustration about the exam directly. Which defense mechanism is Mrs. Smith exhibiting?

Displacement is a defense mechanism in which emotions, impulses, or frustrations generated by one person or situation are redirected toward a safer, less threatening target. Mrs. Smith is angry and frustrated about her poor exam grade, but rather than confronting that situation directly — which may feel threatening or unresolvable in the moment — she redirects her negative feelings onto her roommate during dinner. The roommate is a safer target for her displaced anger. This is the defining characteristic of displacement. Denial involves refusing to acknowledge a painful reality; Mrs. Smith is not denying that she received a poor grade, so this does not fit. Rationalization involves creating logical-sounding justifications for unacceptable feelings or behaviors, such as telling herself the exam was unfair — there is no evidence of this in the scenario. Projection involves attributing one's own unacceptable thoughts or feelings onto another person, for example accusing the roommate of being angry when she herself is angry. The scenario clearly shows Mrs. Smith actively snapping at her roommate, which is behavioral redirection of her frustration rather than attributing her feelings to someone else. Displacement is the most accurate classification of what Mrs. Smith demonstrates.