In Pavlov's Research,dogs Learned That the Sound of a Metronome

Multiple Choice

In Pavlov's research,dogs learned that the sound of a metronome predicted the arrival of food,so the dogs salivated at the sound of the metronome.In this research,classical conditioning occurred in part because the _______ elicited a(n) _______.

A) unconditioned stimulus (food) ; innate, unconditioned response (salivation)
B) conditioned stimulus (food) ; conditioned response (salivation)
C) unconditioned stimulus (metronome) ; conditioned response (salivation)
D) conditioned stimulus (metronome) ; innate, unconditioned response (salivation)