Reinforcing desired behaviors and withholding reinforcement for undesired behaviors is most central to the process of

A) classical conditioning.
B) light exposure therapy.
C) behavior modification.
D) progressive relaxation.

Reinforcing desired behaviors and withholding reinforcement for undesired behaviors is the basis of behavior modification, a therapeutic approach that aims to change behavior through positive or negative reinforcement. Classical conditioning involves pairing an unconditioned stimulus with a neutral stimulus to create a conditioned response, and progressive relaxation involves a series of physical exercises to reduce muscle tension. Light exposure therapy is a treatment for seasonal affective disorder that involves exposure to bright light.