The correct answer is: A. Time rate system.
A time rate system is a method of wage payment in which workers are paid a fixed amount for each hour they work, regardless of how much they produce. This type of system is most suitable for jobs where the speed of production is beyond the control of the worker, such as jobs that involve waiting for machines to finish processing materials or jobs that involve working with customers.
A piece rate system is a method of wage payment in which workers are paid a fixed amount for each unit they produce. This type of system is most suitable for jobs where the speed of production is under the control of the worker, such as jobs that involve assembly line work or jobs that involve manual labor.
The Halsey premium system is a type of incentive wage plan in which workers are paid a base rate plus a bonus for production that exceeds a standard level. The bonus is typically equal to 50% of the time saved by producing above the standard.
The Rowan premium plan is a type of incentive wage plan in which workers are paid a base rate plus a bonus for production that exceeds a standard level. The bonus is typically equal to 33.33% of the time saved by producing above the standard.
In conclusion, the time rate system is the most suitable method of wage payment where the speed of production is beyond the control of the worker.