please help

16A firm is considering buying a patent that would give it a monopoly over sale of a new drug. If it buys the patent, the monopolist's demand curve would be P = 10 q, and it would have zero marginal costs of production and no other fixed costs. The firm also anticipates that the government will regulate the market in the following way: the government will set a maximum price of $4 per unit. In addition, the government will provide a subsidy to the monopolist equal to the increase in consumer surplus between the outcome in which the monopolist sets its profitmaximising price and in the market with the govemment price regulation. What is the maximum the monopolist is will be willing to pay for the patent? a.12.5 b.25 c375 d.50 e60