different wages for different level of performance
different wages for different time consumed
different wages for different level of output
different wages for different types of industries
✅ The correct answer is A.
Differential piece wages means different wages for different level of performance. A differential piece-rate system is a method of wage payment in which after tests have set a standard time for any task assigned the worker gets a high piece rate for completing the job within the allotted time and lower piece rate for completing the job beyond the allotted time.