Brief Exercise 5-1 Applying ABC Cost Hierarchy (LO2 - CC4,5) The following activities occur at Greenwich Corporation, a company that manufactures a variety of products: Required: Classify each of the activities as a unit-level, batch-level, product-level, or facility-level cost activity. Level a Activity Receive raw materials from suppliers. b. Manage parts inventories. c. Perform rough milling work on products. d. Interview and process new employees in the human resources department e. Design new products. f. Perform periodic preventative maintenance on general-use equipment. g. Use the general factory building. h. Issue purchase orders for a job