Ivan Pavlov Rang a Bell Every Time He Fed Meat

Multiple Choice

Ivan Pavlov rang a bell every time he fed meat powder to dogs.After repeated trials,the dogs began to salivate when they heard the bell,even if there was no food in sight.According to Pavlov,the dogs' salivation in the absence of food,following the ringing of the bell,is called the

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