Explain why the marginal product

of labour curve is thefirm's labour demand curve.

A.

A firm maximizes profits for the quality of labour input that implies marginal product of labour equals wages.

B.

A firm maximizes profits for the quantity of labour input that implies marginal product of labour is less than wages.

C.

A firm maximizes profits for the quantity of labour input that implies marginal product of labour is greater than wages.

D.

A firm maximizes profits for the quantity of labour input that implies marginal product of labour equals wages.