Question 4 (15 pts): A. Given the product structure and master production schedule given below, develop a gross requirements plan for all items. B. Given the preceding product structure, master production schedule, and inventory status, develop a net materials requirements (planned order release) for items A1 and C. Master Production Schedule for X1 PERIOD 7 8 9 10 11 12 Subassembly X1 Gross requirements 50 20 100 311) B27 LEAD TIME ON HAND ITEM LEAD TIME ON HAND ITEM A1 EU Cos D) X1 B1 B2 1 2 2 1 50 20 20 5 D E 1 1 3 0 0 10 Ea