PART A

Mia keeps her dog's leash in the closet next to the door. Her dog wags his tail when she opens this closet because he has learned to associate the opening of the closet with going out to play. To brighten the space, Mia installed a light next to this closet and now simultaneously opens the closet door and turns the light on. After a few days, what is her dog's response to only turning on the light next to the closet?

a. Runs around barking

b. Wags his tail in excitement

c. Does not wag his tail

e. None of the other options

PART B

Your local coffee shop decided to use a reward program and give free coffee to itsregular customers. Rather than one free coffee every 10 cups the customers buy, they have an app that gives its customers a free coffee every few cups they buy, sometimes after 2 cups, sometimes after 8, but the customer never knows when the next free coffee will come. The coffee shop has effectively used:

a. Variable interval reinforcement

b. Variable ratio reinforcement

c. Fixed interval reinforcement

d. Fixed ratio reinforcement