Answer: Classical conditioning
Explanation:
By teaching dogs to associate the sound of a bell with being fed, Pavlov established the principles of classical conditioning. Classical conditioning is a process by which we learn to associate stimuli and, consequently, to anticipate events. Classical conditioning is a form of learning whereby a conditioned stimulus becomes associated with an unrelated unconditioned stimulus, in order to produce a behavioral response known as a conditioned response. The conditioned stimulus is usually neutral and produces no particular response at first, but after conditioning, it elicits the conditioned response.