Read the below scenario and select the best answer. Mr. Smith is Brad's math teacher. Mr. Smith used to reprimand Brad whenever Brad made a mistake on his worksheet to the point that Brad felt scared every time he saw Mr. Smith. After Mr. Smith learned the principle of reinforcement, he stopped reprimanding Brad. Over time, Brad no longer feels scared when he sees Mr. Smith. Hint: Consider the difference between operant and respondent extinction. Operant extinction involves withholding reinforcement for a response, while respondent extinction involves the weakening of a conditioned response when the conditioned stimulus is no longer paired with the unconditioned stimulus. Group of answer choices This is an example of operant extinction. This scenario demonstrates how a punisher decreased a response. This is an example of reinforcement. This is an example of respondent extinction