Bobby and Sue were parked at Lover's Lane.When Bobby kissed Sue,his breathing accelerated.Sue always wore Chanel #5 when she went out with Bobby.Whenever Bobby smelled Chanel #5,he began to breathe faster.Sue's kiss was the:
A)US.
B)UR.
C)CS.
D)CR.

Question

Quizplus · Accepted Answer

Sue's kiss was the Unconditioned Stimulus (US) because it naturally caused Bobby's breathing to accelerate without prior conditioning.

Bobby and Sue Were Parked at Lover's Lane