Firms Will Continue to Produce If

Firms will continue to produce if:

A) the marginal benefits of producing an additional unit are greater than the marginal costs of producing that unit.
B) the marginal benefits of producing an additional unit are less than the marginal costs of producing that unit.
C) the marginal benefit of producing an additional unit is equal to the marginal cost of producing that unit.
D) the costs of producing the unit stay constant.