4. [-I1 Points] 0/100 Submissions Used MY NOTES Let C(x) represent the cost and Rod the revenue, in dollars, associated with producing and selling X units of Dr. Little's Winning at Love 7 A Strategy Guide to the Game of Tennis. If C(90) = 193 and R'(90) = 70, which one of the following statements is true? 0 Producing and selling the let item will increase total profits. 0 Producing and selling the let item will decrease total profits. 0 Since marginal cost is greater than marginal revenue, total profits are positive when 90 items have been sold. 0 Since marginal cost is greater than marginal revenue, total profits are negative when 90 items have been sold. 0 Producing and selling the let item will have little to no effect on total profits