4 16. The following precedence network is used for assembling a product. You have been asked to achieve an output of 240 units per eight-hour day. All times in this network are in minutes. Balance the line using the following rule: assign tasks to workstations on the basis of most following tasks (Rule 1). Use greatest positional weight (Rule 2) as a tiebreaker. What is the average worker utilization? Hint: find each worker's utilization first, the ind their average 0.2 0.4 0.2 12 b 0.4 1.0 2.0 g d e Select one: O a. 100 O b. 67.5 O c. None of the provided options question b 0.4 1.0 d e Select one: a. 100 b. 67.5 O c. None of the provided options O d. 40 O e. 60 O f. 50 O g. 30