The demand for subassembly S is 80 units in week 7. Each unit of S requires 2 units of T and 1 unit 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 2 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, 1 week to make V, 3 weeks to make W. 1 week to make X, 2 weeks to make Y, and 2 weeks to make Z. Click the icon to view the product structure and the time-phased product structure. Construct a gross material requirements plan (type 0 if the input box is not used). Week Lead Time (weeks) Item 1 2 3 4 5 6 7 S Gross req Order release 2 - More info The product structure. The time-phased product structure. Q Level 0 V w S T T(2) X U () 1 S EY Y LY U U N 2 V2) W(2) X(1) Y(1) Z2) 6 01- 2 3 4 5 Time in weeks Print Done