Answer: D. Support department cost allocations should be incorporated into a product costing system.
Explanation:Support departments provide essential support services for producing departments and by this the support department costs are part of the total product costs and must be assigned to the products through cost allocation from support departments to producing departments.
All manufacturing costs, direct and indirect must be assigned to the products produced to meet GAAP requirements.
The cost allocation method to use can be: a single charging rate, dual charging rate or allocation of costs.