Is my work correct?

Given the following data, develop MRP plans for items C, D, E and F. MPS start for end items: The following table shows the MPS start information for two end items: item A and B. For example, we have a plan to start producing 70 units of end item A in week 2. End item Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 A 30 70 80 B 60 110 Bill of materials: - End item A is made of 1 unit of item C and 1 unit of item D. - Item D is made of 2 units of item E and 2 units of item F. - End item B is made of 1 unit of item C and 2 units of item F. MRP-related information for each item: Item Leadtime Lot sizing (weeks) Safety stock requirement (SS) Scheduled receipts (SR) Available on-hand inventory (OH) 60 80 90 30 0 D E F 2 1 1 1 L4L L4L FOQ (200) FOQ (100) 0 0 10 80 in week 1 None None 200 in week 1 Week 3 Week 4 Week 5 Week 1 30 Week 2 70 Item A Week 6 80 110 190 Item B 60 60 70 30 80 110 MRP Start MRP Start GR SR PAB 60 PR POR 30 40 40 0 0 Item C (1) LT= 2 SS=0 OH=60 SR=80 L4L 0 190 30 20 20 190 30 70 80 Item D (1) GR LT=1 SR SS=0 PAB OH=80 PR L4L POR 8050 0 0 0 0 80 20 20 80 120 160 220 40 200 Item F (2) LT=1 SS=10 OH=30 SR=200 FOQ (100) GR SR PAB PR POR 20 180 180 180 60 0 120 300 100 300 100 40 160 Item E (2) GR LT=1 SR SS=0 PAB OH=90 PR FOQ (200) POR 90 50 50 50 50 90 90 200 200