The saying that "There's no such thing as a free lunch" refers to the
A) marginal principle.
B) spillover principle.
C) principle of opportunity cost.
D) reality principle.

Question

Quizplus · Accepted Answer

The principle of opportunity cost states that whenever resources are used to produce one good or service, they cannot be used to produce something else. Therefore, even if something appears to be free, there is always an opportunity cost involved. For example, a free lunch may seem like it doesn't cost anything, but in reality, the time and effort it takes to attend the lunch could have been used for something else, such as earning money or spending time with family. So, there is always a cost to everything, even if it is not monetary.

The Saying That "There's No Such Thing as a Free