answer both A and B

9. Assume that you are the manager of a shop that assembles power tools. You have just received an order for 50 chain saws, which are to be shipped at the start of week 8. Pertinent information on the saws is Item Lead Time (weeks) On Hand Components 2 Saw A B 1 A(2), B(1), C(4) E(3), D(1) D(2), F(3) E(2), D(2) 2 15 10 5 65 20 10 30 2 D 1 1 E F 2 a. Develop a product structure tree, an assembly time chart, and a master schedule. b. Develop the material requirements plan for component Eusing lot-for-lot ordering for all items