Drover,my Dog Follows Me into the Kitchen Where He Sees

Multiple Choice

Drover,my dog follows me into the kitchen where he sees me get some food.Of course,I give him a treat.After doing this several times,now,every time I go into the kitchen,Drover follows me to get some food.Going to the kitchen is an example of the ______.

A) unconditioned stimulus
B) conditioned stimulus
C) unconditioned response
D) conditioned response