In Pavlov's experiments he paired the presentation of food with a buzzer and measured salivation to each. In this experiment the salivation was

A) the unconditioned stimulus.
B) the conditioned stimulus.
C) the conditioned response, but not unconditioned response.
D) both the conditioned and the unconditioned response.

Conditioned Response

A response that is taught in reaction to a stimulus that was once neutral but has become linked with a stimulus that naturally evokes a response.

Unconditioned Response

An automatic, natural response to a stimulus that occurs without the need for learning.

Salivation

The secretion of saliva in the mouth, which is often a response to the presence or thought of food.