16 If zinc suppliers are successful in forming an international zinc cartel, they will a. lower output, raise prices, and have a need to prevent the entry of new firms into the industry. b. lower output and raise prices, which discourages the entry of new firms into the industry. c. raise output and raise prices, which discourages the entry of new firms into the industry. d. raise output, raise prices, and have a need to prevent the entry of new firms into the industry