Whenever Calvin Throws His Sister's Doll in the Toilet,his Mother

Multiple Choice

Whenever Calvin throws his sister's doll in the toilet,his mother locks Calvin in his room.As soon as Calvin apologizes,his mother lets him out.Eventually,Calvin learns to apologize immediately,so that he can get out of his room sooner.Calvin is demonstrating ____.

A) punishment
B) escape conditioning
C) avoidance conditioning
D) positive reinforcement