The law of diminishing marginal utility implies that

A) demand curves always slope downward and to the right.
B) supply curves always slope upward and to the right.
C) a consumer will always buy positive amounts of all goods.
D) total utility will always increase by an increasing amount as consumption increases.

Diminishing Marginal Utility

The decline in the additional satisfaction a person derives from consuming one more unit of a good or service.

Demand Curves

A graphical representation showing the relationship between the price of a good and the quantity of that good that consumers are willing and able to purchase at various prices.

Supply Curves

A graphical representation showing the relationship between the price of a good and the quantity supplied at those prices.