A Chronic Alcoholic Receives Acupuncture Treatments as Adjunctive Therapy to Individual

A chronic alcoholic receives acupuncture treatments as adjunctive therapy to individual and group counseling. In two years, he remains alcohol-free. What statement could you make about this situation?

A) The rates of relapse are so great with alcohol addiction. Two years of sobriety cannot be considered a success.
B) Individual and group counseling in combination yield more effective results than one type of counseling alone.
C) The patient must have been highly motivated, because acupuncture and counseling would not produce such results without medication.
D) Acupuncture may produce naturally-occurring substances in the body, such as beta-endorphins, that may help the alcoholic feel good enough not to drink.