The gross requirements for Item X are specified for the beginning of weeks 1 through 8 in the table that follows. The product structure for the item is given in the figure: The lead time of each item is specified within square brackets. For example, the lead time for Item X is 1 week. The number of units required for each lower level part is specified within parentheses. For example, each unit of Item B requires 1 unit of Part C and 2 units of Part D. Product Structure for Item X Level O X [LT 1] Level 1 B (1) [LT 1] Z (2) C (4) [LT 1] [LT 1] Level 2 C (1) [LT 1] D (2) H (1) K (1) [LT2] [LT 1] [LT 3] H (1) K (1) M (2) N (1) Level 3 [LT 1] [LT 3] [LT 1] [LT 1] Gross Requirement On-hand Inventory Item X Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 Week 7 Week 8 0 0 0 0 0 45 70 30 Planned Order Release The projected on hand inventory at the beginning of Week 1 (end of Week 0) for Item X is 30 units and for Item B is 10 units. There are no scheduled receipts. What is planned order release for Item M in Week 1? Specify the number of units. What is planned order release for Item M in Week 2? Specify the number of units. What is planned order release for Item M in Week 3? Specify the number of units.