After a Dog Had Been Conditioned to Salivate to the Sight

Multiple Choice

After a dog had been conditioned to salivate to the sight of a triangle, the triangle alone was presented to the dog every three minutes. Over the course of several trials, the amount of saliva secreted by the dog in response to the triangle decreased to zero. At that point, the dog was put back in his cage for the night. What happened the next morning when the triangle was presented to the dog again?

A) Because of latent learning, the dog did not salivate.
B) Spontaneous recovery likely occurred, and the dog salivated in response to the triangle.
C) Learned helplessness developed, and the dog did not respond in any way.
D) Because the triangle was no longer a discriminative stimulus, the dog did not salivate.