Under a just-in-time costing system, the journal entry for the purchase of $1,000 of raw materials on account would be: OA. Raw and In-Process Inventory Cash 1,000 1,000 OB. Raw and In - Process Inventory 1,000 Accounts Payable 1,000 OC. Accounts Payable 1,000 Raw and In-Process Inventory 1,000 OD. Conversion Costs 1,000 Accounts Payable 1,000