Vincent Used to Work Driving the Ice Cream Truck

Multiple Choice

Vincent used to work driving the ice cream truck.Every time he had to go in the cold freezer,the bells would go off,and he would shiver in response to the cold freezer.Eventually,he shivered to the sound of the bells alone,and even to other jingling sounds,such as the sound of his dishwasher when it was finished.The fact that sounds similar to the bells also trigger the same response is called

A) systematic desensitization.
B) stimulus generalization.
C) stimulus discrimination.
D) conditioned tolerance.