Listed below are steps of purchasing and receiving materials: 1. The receiving clerk prepares a receiving report. 2. Purchase requisitions are prepared to notify the purchasing agent that additional materials are needed. 3. The purchase of merchandise is recorded by the accounting department. 4. The purchasing agent completes a purchase order. In which order would these events typically happen? 4,2,3,1 2,4,3,1 2,4,1,3 4,2,1,3