A production process at Kenneth Day Manufacturing is shown in the figure below. The drilling operation occurs separately from, and simultaneously with, the sawing and sanding operations. A product needs to go through only one of the three assembly operations (the operations are in parallel). 7 units/hr 5 units/hr Sawing Sanding Assembly 0.7 units/hr Welding 1.8 units/hr Assembly 0.7 units/hr Drilling 2.5 units/hr Assembly 0.7 units/hr a) is the bottleneck. b) The bottleneck time of the overall system is minutes per unit. (Round your response to two decimal places.) c) The throughput time of the overall system is minutes. (Round your response to two decimal places.) d) If the firm operates 12 hours per day, 20 days per month, the monthly capacity of the manufacturing process is units. (Enter your response as a whole number.)