Question 17 1 pts A large manufacturer of pencil sharpeners is planning to add a new line of sharpeners, and you have been asked to balance the process, given the following task times and precedence relationships. Duration units are in minutes. Assume an eight-hour workday. 0.4 0.6 1.3 a b d 0.2 1.5 0.6 0.5 h g 0.3 1.2 f If tasks a, b, c and d are assigned to workstation I, tasks e, f and g are assigned to workstation II, and tasks h and i are assigned to workstation III, what is the efficiency? 58.93% 78.57% 60.71% 75%