Toyota's demand for its car A is 1,200 units per quarter. After carrying out the master production plan and the list of materials, it is determined that to manufacture a vehicle A, 2 units of material B and 3 units of material C are needed. For each unit of material B, 2 units of part D are needed and 2 units of part E. For each unit of piece D, 1 piece G and 2 pieces F are required, and for each of the pieces E, 2 units of G are required. Now for piece C, 1 piece F and 4 units of D are needed. To complete one unit of D, you need 1 unit of G and 2 units of F. Below is the inventory record that reflects the stock level and lead time:d PRODUCT A B C D E F G START INVENTORY 200 0 0 0 0 0 0 DELIVERY TIME 1 WEEK 2 WEEK 3 WEEK 2 WEEK 4 WEEK 3 WEEK 4 WEEK With this information: 1. Make the bill of materials diagram (step 1). 2. Prepare the material registration table (, considering the safety stock "0"). 3. Prepare the table of net needs [ =