The demand for subassembly S is 100 units in woek 7 . Each unit of S requires 1 unit of T and 1 unit of U. Each unit of T requires 2 units of V, 1 unt of W, and 1 unit of X. Finally, each unit of U requires 2 units 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 weck to make V,3 weeks to make W,2 weeks 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)