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 by sounding the metronome and then failing to present the dogs with any food right away.Soon,they stopped salivating to the sound of the metronome.This represents the process called ______________.

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