Section A (Compulsory to answer question 1.) Question 1 Your firm manufactures products that requires subassembly of several units. Each unit of Srequires 1 unit of T and 2 units of U. Each unit of T requires 1 unit of V, 2 units of W, and 1 unit of X. Finally, each unit of U requires 2 units of Y and 3 units of z Your firm manufactures all items, which takes 2 weeks to make S. 1 week to make T. 2 weeks to make u, 2 weeks to make V. 3 weeks to make W. 1 week to make X. 2 weeks to make Y and 1 week to make 2 (a) Construct a product structure tree and include the time-phased. (8 marks) (b) Your firm received an order of 100 units of product that due in week 7 and also a demand for 20 units of U in week 6. The 20 units of a component of S) are needed for maintenance purposes. Based from the following on-hand inventory (Table 1). prepare the planned order release of each component necessary to deliver product S (100 units). Use lot for lot ordering technique. (22 marks) H01 Table 1: On-hand inventory data Item On-hand Inventory 20 T 20 U 40 30 w 30 25 Y 260 40 [30 MARKS) 3