Schedule of Activity Costs Quality Control Activities Activity Cost Process audits $49,700 Training of machine operators 28,100 Processing returned products 16,300 Scrap processing (disposal) 25,800 6,200 Rework 28,100 Preventative maintenance Product design 45,100 7,000 Warranty work 22,200 Finished goods inspection From the above schedule of activity costs, determine the total activity cost. Oa. $228,500 Ob. $98,000 Oc. $276,485 Od. $150,100