After pavlov's dogs became conditioned to salivate at the sound of the metronome, he experimented with 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. extinction.
b. acquisition.
c. testing.
d. extinction.
e. spontaneous recovery.

a. extinction

Explanation:

Classical conditioning is a process of learning by repeatedly pairing stimuli with a desired behavior.

However, sometimes this conditioned response can begin to fade, this process is called extinction and it usually happens when we present the conditioned stimulus without the presence of the unconditioned stimulus. This makes the pairing to stop happening and the behavior stops.

In this example, after the dogs became conditioned to salivate at the sound of the metronome (conditioned stimulus) he stared to sound the metronome without presenting food (unconditioned stimulus) to the dogs, so the dogs stopped salivating. Therefore, this is an example of extinction.

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