A Tone Is Followed by Shock Until the Rat Consistently

Multiple Choice

A tone is followed by shock until the rat consistently responds to the tone. Then, the tone is accompanied by a light for several additional trials. In later test trials the tone or light is presented separately, the rat will show strong reaction to the tone and little or no reaction to the light. This phenomenon is called the

A) blocking effect.
B) conditional response.
C) anticipatory response.
D) law of effect.