7. Margy a1 costs facing any rm considering a change in output represent: a. extraordinary overtime charges that must sometimes be paid to increase output. 13. the cost incurred even if the rm produces zero output. c. the diffcgrence between the total cost actually incurred to produce any given output and the smallest possible total cost of producing that output. d. the increase in total cost that accrues from a 1-unit increase in quantity produced. e. the increase in total cost that accrues from any increase in quantity produced, whether 1 unit or more