1. What is the planned order release for Item A in Week 3

2. What is the planned order release for Item A in Week 4

3. What is the planned order release for Item B in Week 4

4. What is the planned order release for Item C in Week 2

MRP for two end items X and Y is to be completed. The gross requirements for Item X are 160 at the beginning of Week 6 and 270 at the beginning of Week 7. The gross requirements for Item Y are 40 at the beginning of Week 6 and 100 at the beginning of Week 7. The product structure for the two items is given below. x Y [LT 2] [LT 1) A (2) A (1) B (2) [LT 1] [LT 2] [LT 1) [LT 2] C (1) [LT 2] C (1) Item X requires 2 units of A and one unit of C. Item Y requires 1 unit of A and two units of B. Each unit of B requires one unit of C. Note that items A and C appear on both product structures. The lead time for each item is specified in the product structure: The lead time for Items X, B and C is 2 weeks; for Items Y and A is 1 week. The on-hand inventory for item A at the beginning of week 1 is 240