Suppose that Congress passes a new law aimed at reducing healthcare costs: All Americans are required to eat one apple daily. Which of the following statements correctly describes the effect of this apple-a-day law?

a. The value of the marginal product of apple pickers increases.
b. The equilibrium price of apples increases.
c. The demand for apples remains unchanged.
d. The demand for apple pickers remains unchanged.
e. The marginal product of apple pickers increases.
f. The wage of apple pickers increases