StarZinc Company produced 200 defective units last month at a unit manufacturing cost of $50. The defective units were discovered before leaving the plant. StarZinc can sell them as is for $35 or can rework them at a cost of $40 and sell them at the regular price of $100. The total relevant cost of reworking the defective units is: a $8500 b. 510,000 C 518,000 d. 18.000 c. 52,000