At the optimal quantity of a public good:

A) marginal benefit exceeds marginal cost by the greatest amount.
B) total benefit equals total cost.
C) marginal benefit equals marginal cost.
D) marginal benefit is zero.

Public Good

A product that one individual can consume without reducing its availability to another individual and from which no one is excluded.

Marginal Benefit

The incremental utility or satisfaction derived from the consumption or production of an additional good or service unit.

Marginal Cost

The increment in comprehensive expenses related to the generation of an extra unit of a good or service.