Schedule of Activity Costs uality Control Activities Activity Cost Process audits $50,000 Training of machine operators 28,000 Processing returned products 19,000 Scrap processing (disposal) 25,000 Rework 8,000 30,000 Preventative maintenance Product design 46,000 Warranty work 12,000 23,000 Finished goods inspection From the above schedule of activity costs, determine the appraisal costs X Oa. $23,000 b. $73,00o C. $104,000 d. $50,000o