The Rules of the Game Refer To

The rules of the game refer to:

A) any factor that facilitates production and exchange,such as tax laws and property rights.
B) a gradual but consistent change in the price level until a fair price is attained.
C) the set of election laws that ensure that all elections are fair.
D) the rules that a firm must follow in order to earn a profit.
E) the requirement that households must supply labor to firms.