Four parts (A, B, C, and D) are processed through a sequence of four operations (1, 2, 3, and 4). Not all parts are processed in all operations. Part A, which has weekly quantities of 95 units, is processed through operations 1, 2, and 3 in that order. Part B, which has weekly quantities of 103 units, is processed through operations 2, 4, and 1 in that order. Part C, which has weekly quantities of 85 units, is processed through operations 3, 2, and 4 in that order. Finally, part D, which has weekly quantities of 200 units, is processed through operations 2, 1, and 4 in that order. (a) Draw the network diagram and (b) prepare the From-To table for this work system. (c) Using Hollier's algorithm, prescribe a layout for the workstations relating to the four operations, and redraw the network diagram (d) Determine the percentages of in-sequence, bypass, and backflow moves from (c).