When Alex held the car door open for Stephanie, she made a big fuss over what a gentleman he was becoming. Alex no longer holds the car door open for her. The consequence for holding open the door was the _____ of a stimulus, and the behavior of holding open the door subsequently _______ in frequency; therefore, this is an example of _______ ______.

Fill in the blank(s) with the appropriate word(s).

Answer: Presentation; decrease; positive punishment.