After She Realized That the Mosquito Had Bitten Her and Her

Multiple Choice

After she realized that the mosquito had bitten her and her hand was starting to itch, Akai rubbed some cortisone cream on the swollen spot, and the itching stopped. The next time a mosquito bit her, she applied cortisone cream immediately to relieve the itching. Using operant conditioning terms, this is an example of:

A) negative reinforcement by escape.
B) positive reinforcement.
C) negative reinforcement by avoidance.
D) negative punishment.