After Pavlov's Dogs Became Conditioned to Salivate at the Sound

Multiple Choice

After Pavlov's dogs became conditioned to salivate at the sound of the metronome,he experimented with sounding the metronome but not presenting the meat powder to the dogs.Soon they stopped salivating to the sound of the metronome.This represents the process called _____.

A) acquisition
B) testing
C) extinction
D) spontaneous recovery