The following activities occur at Greenwich Corporation, a company that manufactures a variety of a Receive raw materials from suppliers b. Manage parts inventories c Do rough milling work on products d. Interview and process new employees in the personnel department e Design new products Perform periodic preventive maintenance on general-use equipment 9. Use the general factory building, h Issue purchase orders for a job Required: Classify each of the activities above as either a unit-level, batch-level, product-level, or organization-sustaining activity Required: Classify each of the activities above as either a unit-level, batch-level, product-level, or organization-sustain a. Receive raw materials from suppliers. b. Manage parts inventories. c. Do rough milling work on products. a. Interview and process new employees in the personnel department e Design new products, 1. Perform periodic preventive maintenance on general-use equipment 9. Use the general factory building h. Issue purchase orders for a job