Tim loves dill pickles. now, the sight of a jar on the supermarket shelf makes his mouth water. in the terminology of classical conditioning, the sight of the jar is a

The sight of the jar became a conditioned stimulus because as the jar was associated with Tim, it enables Tim to experience a conditioned response in which his mouth is watering for the reason that Tim loves dill pickles. A conditioned stimulus enables a conditioned response to happen if it has been associated with a unconditioned stimulus which is being portrayed above.