O.H.Mowrer trained children to discontinue bed-wetting by arranging for an alarm to sound each time they wet their beds.This technique best illustrates a therapeutic application of

A) systematic desensitization.
B) cognitive-behavioral therapy.
C) psychodynamic therapy.
D) classical conditioning.

O.H. Mowrer's technique of using an alarm to sound each time a child wets their bed involves pairing the sensation of wetting the bed with an external stimulus (the sound of the alarm). This process is classical conditioning, where a neutral stimulus (the sound of the alarm) becomes associated with a natural, innate response (the sensation of wetting the bed) resulting in a learned response (the child waking up before wetting the bed).