All of the following characterize both perfectly competitive and monopolistically competitive markets EXCEPT: Price is equal to average revenue. Price is equal to average revenue. A Individual firms produce output where marginal cost equals marginal revenue. Individual firms produce output where marginal cost equals marginal revenue. B Firms can affect the selling price of their product. Firms can affect the selling price of their product. C The market has a large number of firms. The market has a large number of firms. D Firms can easily enter or exit the market.