Must be determine the net requirements for each table

The following figure shows The Bill of Materials (BOM) for the XA. XA Level 0 A1 (4) A2 (3) Level 1 We will plan the production and launch of OFs for 8 weeks to prepare the order. The chosen masterschedule is as follows: Week No. Beg. 1 2 4 5 6 7 8 Iny 2 3 1 120 180 The following table gives us information on the stock status and the lead time of different products and Isubproducts Inventory Weekl 0 Product/Subproduct XA A1 A2 Lead time (Week) 1 3 2 400 600 Determine the size and timing of planned order releases necessary to meet delivery requirements (MRP), we use the a) Lot-for-lot ordering b) Lot-size ordering with a lot size of subproduct A1 230 subproduct A2 250