Thinking in Economic Terms,when Mary Sweet-Tooth Is Deciding Whether to Eat

Multiple Choice

Thinking in economic terms,when Mary Sweet-Tooth is deciding whether to eat another brownie,she:

A) considers only the price of the brownie.
B) considers only how much additional exercise she will need to do to work off the calories associated with eating another brownie.
C) compares all of the benefits and costs of eating another brownie.
D) considers whether she can do so without anyone else noticing.