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4) [5 pts] A production process at OU Manufacturing is shown in the figure below. The drilling operation occurs separately from, and simultaneously with, the folding and sanding, which are independent sequential operations. A product needs to go through only one of the three assembly operations (the operations are in parallel). Assume that demand is very large. a) [2 pts] Identify the bottleneck activity. (e.g., Folding, Sanding, Drilling, Welding, Assembly) Sanding b) [2 pts] Fill in the blank (do not forget your measurement units) c) [1 pts] We assumed that demand is very large in this case, but now let's assume that demand is very small, say demand is 1 unit/hr. How would this affect bottleneck time and throughput time? Choose one out of three options (up, down, no change) for each sub-question below. a. Bottleneck time: Up Down No change b. Throughput time: Up Down No change