Rachel’s dog loves meat and salivates when he sees it. Rachel repeatedly shows her dog a picture of a circle before showing him a piece of meat. Soon, the dog salivates to the picture of the circle. When Rachel shows her dog a picture of an oval, the dog does not salivate, which is best explained by

The correct answer to the following question will be "Stimulus discrimination ".

Explanation:

Stimulus Discrimination would be when they choose to adjust to anything other than the initial stimulus, rather than to certain related stimuli. The principle of this Discrimination stems from the belief of Stimulus Generalization because that's when they refer not just to the initial stimulus but for many other specific stimuli as well.

So that the given scenario is best explained by the Stimulus Discrimination.

The answer is metaphase