Which of the following statements is true? O a. Job-order costing is simpler to use than process costing because the recordkeeping requirements are less. O b. Job-order costing is ideal for homogeneous products that are produced in large volumes. O c. Job-order costing and process costing cannot be used in the same company. O d. The job cost sheet is subsidiary to the work in process account. O'e. Manufacturing overhead is a part of manufacturing costs only in a job-order costing approach