If we can somehow REDUCE the variability, what would happen to the optimal batch size (i.e., in terms of throughput time)? Assume that everything else (e.g., processing time, setup time, etc.) stays the same, so ONLY the variability is reduced. The batch size would stay exactly the same The batch size would increase The number of batches would decrease The batch size would also decrease A lower throughput time can be achieved with smaller batches, but this would lead to higher utilization. Which of the following would allow us to use smaller batch sizes (i.e., more batches)? Higher setup time, lower variability O Lower setup time, higher variability Higher setup time, higher variability Lower setup time, lower variability