0 Willy's Wagons manufactures custom carts for a variety of unes. The following data has been recorded for Job 531, which was recently completed ac materials used cost 120. There were 210 direct labour hours worked on this job at a direct labour wage rate of $20 per hour. There were 165 machine hours uned on this job. The predetermined overhead rate is 12 per machine hour used What is the total manufacturing cost of Job 531? OA. $22,380 OB. 523.820 OC. $6555 OD 53.600