The following table details the tasks required for Indiana-based Frank Pianki Industries to manufacture a fully portable industrial vacuum cleaner. The times in the table are in minutes. Demand forecasts indicate a need to operate with a cycle time of 10 minutes. Activity Activity Description Time (mins) Performance Predecessors A Attach wheels to tub 4.0 B Attach motor to lid 1.6 Attach battery pack 2.8 B D Attach safety cutoff 4.0 C E Attach filters 3.0 B F Attach lid to tub 2.0 A, E G Assemble 2.8 attachments H Function test 4.0 D, F, G I J Final inspection Packing 2.0 2.0 H | a-b) One of the possible assignment of tasks to workstations is shown correctly in Fig. 2. The efficiency of the assembly line with 3 workstations = % (enter your response rounded to two decimal places). B Fig. 2 Fig. 3 G The efficiency of the assembly line with 3 workstations c) The goal is to have 100% efficiency. Is this possible? d) The theoretical minimum number of workstations=