A table is assembled using three components, as shown in the accompanying product structure tree. The company that makes the table wants to ship 100 units at the beginning of day 4, 150 units at the beginning of day 5, and 200 units at the beginning of day 7. Receipts of 100 wood sections are scheduled at the beginning of day 2. There are 120 legs on hand. There are 60 braces on hand. Lead times ( in days) for all items are shown in the following table. Prepare a material requirements plan using lot  for lotordering.