Direct apportionment involves Group of answer choices a. a onetime allocation of all costs from non-revenue-generating departments to other non-revenue-generating departments, then an allocation of all costs from non-revenue-generating departments to all revenue-generating departments. b. a onetime allocation of all costs from non-revenue-generating departments to revenue-generating departments. c. a two-step allocation of costs involving multiple, simultaneous apportionments during the first step. d. simultaneous allocations from all non-revenue-generating departments to other non-revenue-generating departments and revenue-generating departments to revenue-generating departments before a onetime allocation of all costs to revenue-generating departments.