MRP planning; please help

1. What is the planned order release for item C in period 1

2. The planned order release for item C in period 3 is

3. The planned order release for item D in period 1

4. The planned order release for item D in period 2

5. Suppose the cost of holding items in inventory is $2 per item per period, and the ordering (set up) cost is $100/order, what is the total cost of this material plan for item E

Given the following data: Master production schedule Week: 1 MPS for A 200 180 95 150 MPS for B 100 100 100 100 100 Data: Item Lead time Available Scheduled Receipts A, BO A,B 3 100 200 in week #1, 300 in week #2 D 2 400 400 in week #1, 300 in week #2 1300 1000 in week #1, 1260 in week #2 Bill-of-Materials: D(2) D(1) D(3) E(2) E(2) E(2) E(3) E(2) The lot sizing rule is lot for lot. Let the lot sizing rule to be Fixed Order period (FOP= 2 periods) for all components, keep the data for A,B, and C, but change the input of D and E to: Item Lead time Available Scheduled Receipts 480 400 in week #1, 300 in week #2 1300 2000 in week #1,450 in week #2