The demand for subassembly S is 100 units in week 7. Each unit of Srequires 2 units of T and 1 unit of U. Each unit of T requires 2 units of V, 2 units of W. and 2 units of X Finally, each unit of U requires 2 units of Y and 3 units of Z. One firm manufactures all items. It takes 2 weeks to make S. 2 weeks to make T. 2 weeks to make U, 1 week to make V. 2 weeks to make W. 1 week to make X 2 weeks to make Y, and 2 weeks to make Z a) Choose the correct product structure. . OB Level 0 S Level 0 s TA V3 a 1 ) 1 2 Y2 Wiz xiz) in za C 2 VzY2) 2,3) W2) X2 OC. Level 0 a OD S Level 0 S V UL) 1 T) UD 1 os 2 Tas W2, X2 Y2 23 @ 2 V2 W2) X21 Y2) Za b) Choose the correct time-phased product structure OA . OC. OD Q Z V V V ui Q Y w T w T 05 w o 3 X X S S S T w Y Y Y U U U V Z Z 2 Time in weeks 2 3 4 5 6 Time in weeks Time in weeks Time in weeks