When Laney passes Avenue D, her heart pounds and her stomach tightens. Laney often bought crack cocaine on that street before she became clean. Within the framework of classical conditioning the sight of Avenue D is a(n) stimulus, whereas her body's reaction is a(n) . Please choose the correct answer from the following choices, and then select the submit answer button. conditioned; conditioned response conditioned; reinforcer unconditioned; unconditioned response unconditioned; reinforcer