Bertha Becomes Conditioned to Cry Every Time She Sees an Onion

Multiple Choice

Bertha becomes conditioned to cry every time she sees an onion chopper because she associates it with cutting onions,which always make her eyes water.For weeks,the onion cutter sits on the counter with no onions.Eventually,she never cries when she sees the cutter.Then the onion cutter disappears for two months,and when Bertha sees it again for the first time,she begins to cry.This response is known as ____.

A) positive reinforcement
B) negative reinforcement
C) spontaneous recovery
D) reconditioning