Construct a net requirements plan. It is based on the following data:

BOM Data: L is made up of 20 K's and 3 B's. K is built from 2 Ms.

Item	L	K	B	M
Lead Time	1	1	2	1
Lot Size	1	1000	1000	350
Proj. On Hand	0	1000	0	100
Schedule Receipts		1000 in wk 3		350 in wk 1

The demand for L is 840 units week 6

a) The gross requirements for K in week 5 is 16800

b) In week 5, K has the net requirements of 14800

c) In week 4, M has the net requirements of ________

d) In week 3, M has the planned order receipt of ________

e) Item M will have a POH of ________ in week 8.

I need help for the last three parts (c, d, e) - I was given the answers but, no explanation on how to do it correctly.