Answer:
c. classical conditioning.
Explanation:
Classical conditioning: In psychology, the term classical conditioning was given by one of the famous psychologists named Ivan Pavlov. He discovered the theory of classical conditioning while experimenting with dogs.
In psychology, classical conditioning is defined as a process of learning in which a particular conditioned stimulus gets connected with an unconditioned stimulus and gives rise to a conditioned response which was a formerly neutral stimulus.
In the question above, the given statement is an example of classical conditioning.