Answer: (B) Shaping
Step-by-step explanation:
Shaping is one of the technique that is used in the operand conditioning and the behavior shaping process in which we usually giving reward for accomplish the given task successfully.
The shaping is also known as the procedure of the reinforcement behavior which involve the targeting behavior.
According to the question, the given example is best illustrating the concept of shaping as polar bear is suffering from the tooth pain and veterinarian was easily able to treat the tooth problem while bear was waited for the reward.
Therefore, Shaping is the correct answer.