Choice "C" is correct. Throughput refers to the units of goods that are produced and sold within a period of time. It is useful in evaluation. Setup versus production time helps evaluate efficiency-if setup time is long relative to production time, longer production runs may be more efficient. Rework versus completion is also part of the overall evaluation system, aiding in determining whether quality issues are being appropriately addressed.
Choices "d", "a", and "b" are incorrect based on the above explanation.
