Suppose you have been tasked with regulating a single monopoly firm that sells 50-pound bags of concrete. the firm has fixed costs of $30 million per year and a variable cost of $6 per bag no matter how many bags are produced.

Which of the following best explains why large companies pay less for goods from wholesalers? a. large companies are able to pay for the goods they purchase in cash. b. large companies are able to increase the efficiency of wholesale production. c. large companies can buy all or most of a wholesaler's stock. d. large companies have better-paid employees who are better negotiators.