1. Dumfries Industries is generating a materials requirement plan for the next six weeks. Here is its most current information:

Master Production Schedule

Week	1	2	3	4	5	6
Item A	10	0	20	20	10	10

Other information

Item	Items Parent	Lead time	Lot size	Current inventory
A	None	1 week	LFL	20
B	A	1 week	20	20
C	B	1 week	50	20

1. How many levels does a product structure for Dumfries item A have?

2. Using MRP methodology, how much of Parts A, B, and C should be ordered, and when should they be ordered?

3. Which item will experience the highest average inventory, following this plan?