Differential Piece Rates System Refers To

Differential piece rates system refers to:

A) an incentive pay plan in which the employer pays the rate per piece based on the difference in performance of employees.
B) a wage system designed for salespeople who earn a differential pay for every piece sold.
C) an incentive pay in which the piece rate is higher when a greater amount is produced.
D) a system of linking pay increases to ratings on performance appraisals.
E) an incentive pay plan where every employee is paid different wages based on the skills they possess.