Andre Is Participating in a Psychology Study

Multiple Choice

Andre is participating in a psychology study.He is sitting alone in a room and every few seconds,a bright light flashes in front of him.When the light flashes,he blinks.After a while,a phone rings right before the flash of light.Soon,Andre blinks when the phone rings.In this example,the conditioned stimulus is the ____.

A) phone ringing
B) flash of light
C) blinking after the flash
D) blinking after the ringing