The graph below represents a competitive market for a product where the government has set a price ceiling of 0A. What quantity will buyers be able to buy after the imposition of the price ceiling?

If, in a competitive market, marginal benefit is greater than marginal cost

A) the net benefit to consumers from participating in the market is greater than the net benefit to producers. B) the government must force producers to lower price in order to achieve economic efficiency. C) the quantity sold is greater than the equilibrium quantity. D) the quantity sold is less than the equilibrium quantity.

Vertical foreclosure is an example of a firm:

A. engaging in penetration pricing. B. that merges with a rival firm with the intention of eliminating the rival firm's product from the market. C. that controls an essential upstream input and raises rivals' costs by refusing to sell to other downstream firms that need the input. D. engaging in a price-cost squeeze.