If a perfectly competitive firm and a perfectly price-discriminating monopolist face the same demand and cost curves, then a. the competitive firm will attain resource-allocative efficiency, but the monopolist will not. b. the competitive firm will attain resource-allocative efficiency, but the monopolist may or may not, depending upon the demand for its product. c. the competitive firm will not attain resource-allocative efficiency, but the monopolist will. d. both the competitive firm and the monopolist will attain resource-allocative efficiency. e. neither the competitive firm nor the monopolist will attain resource-allocative efficiency.