Complete the MRP calculations to determine the time-phased requirements for items S2, S3, C4 and M4, based on the requirements for P1 and P2 given in the aggregate production plan and the corresponding MPS and based on the product structure for product P1 and P2. M4 Item Lead Time P1 3WK P2 3 WK S2 2 WK S3 2 WK C4 1 WK 2WK 2 3 9 1 26 Week 4 5 6 7 70 80 70 25 Master production schedule model P1 model P2 8 10 45 10 55 15 20 90 Product structure for product P1 Product P1 Subassemply S1 S2 Component c1 1 C2 1 C3 C4 2 CS 2 C6 1 MI M6 M2 M3 M4 M5 Material 1 1 1 1 Product structure for product P2 P2 S3 S4 1 3 C4 C6 C2 07 1 2 1 2 M4 M6 M2