It's a Very Hot Summer Day and Ai Is Sweating

Multiple Choice

It's a very hot summer day and Ai is sweating in her apartment.She turns on the air conditioning and right away,her apartment gets cooler.The fact that Ai is now more likely to turn on the AC when she is hot to reduce her discomfort illustrates ____.

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