Katrina is training her dog to sit whenever she points at him. She repeatedly points right before giving a verbal command. Her dog gradually learns to associate the pointing with the verbal command and will eventually sit when she points without the verbal command. This process of gradual learning is known as

Acquisition

Explanation:

Acquisition refers to the early stages of learning when the subject responds to stimulus. In classical conditioning, it is the period when the stimulus causes or brings about the conditioned response.

Such as is demonstrated above, Katrina conditions the dog by associating pointing and verbal messages so that the dog learns to sit whenever she points. The phase in which the dogs began to sit when she points is known as the acquisition stage.

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