Which are more economically efficient, perfectly competitive markets or monopolies? Compared to monopolies, perfectly competitive markets are A. less economically efficient because they result in more deadweight lossmore deadweight loss. B. more economically efficient because they result in more economic surplus. C. lessless economically efficient because they produce where marginal revenue is less thanis less than marginal cost. D. less economically efficient because they result in more economic surplusmore economic surplus. E. lessless economically efficient because they produce at higherhigher average total cost.