A Group of People Has Learned to Blink Their Eyes

Multiple Choice

A group of people has learned to blink their eyes whenever they see a flashing blue light, because for the last hour that flashing blue light has always been followed by a puff of air to their eyes. If we want to test for the possibility of stimulus generalization, what procedure should we follow?

A) Present the flashing blue light without the puff of air.
B) Present the puff of air without the flashing blue light.
C) Present a flashing green light.
D) Produce extinction, then wait and test response to the flashing blue light.