Hello I need help with the steps needed for answering these questions. I would like some regarding the steps for solving the exercises

Resource Planning - MRP Exercise 4 A partially completed inventory record for the motor subassembly is shown below. costs the company IE to hold a unit in inventory from one week to the next and the cost to release an order is 50 which of the following for sizing rules will provide the lowest inventory holding + order release cost? 1 POQ rule with P = 2 weeks POO rule with P-4 weeks Resource Planning - MRP Exercises Consider the MPS, BOM and inventory data shown Master Production Schedule: End Item A Weeks 1 2 3 4 5 6 7 8 9 10 ... . End Item A MPS Start 20 40 30 20 40 Quantity on-hand Lot Size Lead timer 2 weeks Bill of Material Item A uses 2 components D, 1 component C and 2 subussembly B. Subassembly Buses 2 components E. Week On-Hand 1 2 3 4 5 6 7 10 Selected Inventory Data Item Lot Sizing Rule Lead Time Scheduled Receipts B LAL 1 week 40 in week! C POQ-3 2 weeks D FOO-250 1 week 80 30 33 20 35 IS 30 25 10 40 60 100 L4L 2 weeks 160 in week 2 Gross Requirements Scheduled Receipts Projected on hand inventory Planned Receipts Planned Order Releases 4. Construct the MRP schedule using the preceding information, . Consider that you decide to change the review policy applied to item D by imposing a safety stock of 55 units. Also consider that a periodic review model with time he wen onders of 3 weeks is now imposed for this item. Whick changes do these new conditions imply in the MRP schedule? MSc in Management of Services and Technology MSc in Management of Services and Technology S