please answer both

a Question 19 (1 point) All of the following are used by firns or groups of firms to gain monopoly power except creating a new patentable innovation. buying sources of important inputs. licensing ca mergers deregulation b C deadweight loss compared to the practice of charging a constant price for all Question 20 (1 point) Quantity discounts have the potential to output in a monopoly. eliminate increase and then decrease not change increase decrease b C d