The journal entry to record the completion of a contract in a job costing system for a service firm is: |A. XXX Cost of Services Billed Wages Payable xxx Work-In-Process Inventory Wages Payable XXX XXX c. Cost of Services Billed Work-In-Process Inventory XXX XXX D. Finished Goods Inventory Work-In-Process Inventory xxx xxx Multiple Choice Option A Option B XXX Cost of Services Billed Work-In-Process Inventory XXX D. XXX. Finished Goods Inventory Work-In-Process Inventory XXX Multiple Choice Option A Option B Optionc Option D