Answer:
conditioned response.
Step-by-step explanation:
Conditioned response: In psychology, the term conditioned response is a very important part of the classical conditioning theory or experiment. The theory was introduced by the psychologist Ivan Pavlov.
In classical conditioning, the term conditioned response is defined as a behavior that doesn't occur naturally and is being learned by organisms (animal or human beings) by associating a neutral stimulus with an unconditioned stimulus.
In the question above, the child's salivation to the sound of the can opener is a conditioned response.