Which of the following is an unconditioned abolishing operation?
A. Henry feels the pain from falling and scraping his knee, and he begins to shout at his friends that it is their fault.
B. Meegan beats the video game she usually gets access to when she helps with chores, and stops helping with chores.
C. Tiffany is warm next to the fireplace, and she does not go searching for a blanket to warm her up.
D. Mason has unexpected expenses this month, and he picks up extra shifts at the restaurant.