3. A table is assembled using three different components as shown in Figure 1. The tables are supposed to be shipped as the followings: 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. Receipt of 100 wood sections are scheduled at the beginning of day 2. There are 120 legs are available in stock (on-hand). An additional 10% of the order size on legs is added for safety stock. There are 60 braces on hand with no safety stock requirement for braces. Lead time in days) for all items are shown in Table 2. Prepare a material requirement plan using lot-for-lot ordering. (40 marks) Table 2: Lead time in days for all items Table Quantity 1-200 201-550 551-999 Lead Time 1 2 Wood sections (2) Braces (3) Legs (4) 3 Figure 1: Product tree structure