A) zero.
B) the amount that allows firms to maximize profits.
C) the amount where firms are earning a normal rate of return on investment.
D) at the point at which the marginal benefit from further reduction equals the marginal cost of further reduction.
B) the amount that allows firms to maximize profits.
C) the amount where firms are earning a normal rate of return on investment.
D) at the point at which the marginal benefit from further reduction equals the marginal cost of further reduction.
ANSWER:
D