Answer:
D. base an employee's salary on the number of task skills he or she possesses.
Step-by-step explanation:
Pay for knowledge programme as the name implies, is when an employer renumerate an employee for learning or developing new skills/task on the job.
If an employee develop new skills while working and then get renumerated, this will make the employee get himself or herself acquainted with the company. In order words, the employee will go out of his way to improve his efficiency in terms of increase in productivity due to the new task skill gained.
In this reward system, the employer rewards the employee with payment increase for leaning new task and skills on the job which is beyond their regular activity.