Tina Has a Heavy Class Load and Is Spending a Lot

Multiple Choice

Tina has a heavy class load and is spending a lot of time studying, to the dismay of her beloved dog, Bobo. When Bobo walks over and puts his chin on Tina's leg, she pets him and gives him a treat from the bag she keeps in her desk drawer. As a consequence, he continues walking over and putting his chin on Tina's leg. Tina has used ____.

A) positive reinforcement
B) negative reinforcement
C) positive punishment
D) negative punishment