You are an auditor studying the internal controls of a client receiving department where inventory purchases are received from vendors. You discover that this department merely unloads inventory from trucks and moves it by forklift to the inventory storage area. Clearly answer and explain each of the following: A.) What properly altered document should be sent to the receiving department prior to arrival of any inventory and what is its purpose? B.) What document should be prepared in receiving after each shipment arrives and what information should it contain? Be specific.