Bob Successfully Completed an In-Patient Treatment Program for Smoking

Multiple Choice

Bob successfully completed an in-patient treatment program for smoking.In fact, he had not had a craving for over two weeks.However, on his way to the office he passed a group of teenagers smoking on the corner.When he smelled the smoke, he immediately went to buy a pack of cigarettes.Why?

A) the reinstatement effect
B) the restoration of extinction effect
C) the frustration effect
D) the spontaneous recovery effect