In a normal costing system, the cost of a job includes O a. actual direct materials, actual direct labor, and estimated (applied] overhead. O b. estimated direct materials, estimated direct labor, and estimated overhead. O c. actual direct materials, actual direct labor, actual overhead, and actual selling cost. O d. actual direct materials, actual direct labor, and actual overhead. O e. None of these choices are true. Job-order costing requires the use of actual, not normal, costing