The demand for subassembly S is 150 units in week 7. Each unit of S requires 1 unit of T and 2 units of U. Each unit of T requires 2 units of V, 2 units of W, and 1 unit of X. Finally, each unit of U requires 1 unit of Y and 3 units of Z. One firm manufactures all items. It 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 Z. Click the icon to view the product structure and the time-phased product structure. Click the icon to view the on-hand inventory. Construct a net material requirements plan using on-hand inventory (enter your responses as whole numbers). Week 4 Lead Time (weeks) Item 1 2 3 5 6 7 S Gross req On hand 150 20 130 130 2 130 T Net red Order receipt Order release Gross reg On hand Net req Order receipt Order release 1 7 The product structure. The time-phased product structure. a Level 0 S V WT X TO) U2) 1 S 5 Y Y Z U 2 V2) W(2) X(1) Y(1) Z(3) 5 00 2 3 5 Time in weeks On-Hand Inventory Item 20 Item S T U On-Hand Inventory 30 25 220 40 20 40 30 3X>N