Schedule of Activity Costs Quality Control Activities Process audits Training of machine operators Processing returned products Scrap process (disposal) Rework Preventative maintenance Product design Warranty work Finished goods inspection From the above schedule of ctivity costs, determine the external failure costs. Select the correct answer. Activity Cost $2,094 898 953 625 1,235 712 404 741 1,697 $3,554 $5,369 $5,805 $1,694