91. Solve the following MRP problem using this product tree structure and the information below. Level C(2) D(2) E(3) D 2 From the Master Production Schedule, the gross requirements for item A are: Period T2 T3 T4 5 6 7 8 Gross Reqt's 15 3 0 20 15 20 20 30 40 The following table includes the lead times, lot sizes, available balances at the Item Lead Time Lot Size Available Balance Scheduled Receipts 10 200 A 1 L4L 20 in period 1 10 minimum 20 15 in period 4 200 minimum None D 2 100 multiple 200 None EL 2 50 multiple 100 None Note: "10 minimum" means you can order 10, 11, 12 but not lower than 10 (e.g. 9); "100 multiple" means you can order 100, 200, 300, etc. Find the planned order releases for items B-E during the next 8 periods. Format like Item A, which is already filled out for you. (assume safety stock requirement is zero) 00 T: Part: A SS: 0 LS: L4L L Gross Requirements Scheduled Receipts Planned Order Receipts Available Balance Planned Order Releases Period 4 15 0 5 20 0 6 20 0 7 30 0 8 40 Item 1 1 2 3 15 30 20 20 0 0 0 20 1015101 15 15 20 30 0 O 40