What is the correct order of the flow of product costs through the inventory system? 0 Work in Process, Finished Goods, Materials Inventory, Cost of Goods Sold 0 Materials Inventory, Work in Process, Finished Goods, Cost of Goods Sold 0 Cost of Goods Sold, Work in Process, Materials Inventory. Finished Goods O Materials Inventory, Work in Process, Cost of Goods Sold, Finished Goods