32. For an economy in which firms have market power, which of the following is the key reason that an equilibrium will not be Pareto efficient?

a.Consumers will not choose goods such that the marginal utility per dollar spent is equalized across the goods they consume.

b.The price charged by producers will not equal the marginal revenue they receive.

c.If input markets are perfectly competitive, firms will not choose inputs such that the marginal product per dollar spent is equalized across all the inputs they purchase.

d.If there is no price discrimination, the marginal rate of substitution across consumers will not be equalized.