What factors should a service company consider when determining which costing method to use? O Consider whether the services provided are routine. If they are routine, process costing is appropriate; if they are not, job order costing is appropriate. Consider whether the services are frequently provided. If they are infrequent, process costing is appropriate; if they are frequent, job order costing is appropriate. Consider whether the services are provided independently of other services. If they are independent, process costing is appropriate; if they are not, job order costing is appropriate. There are no factors to consider. If a service is provided, job order costing should be used; if a good is manufactured, process costing should be used.