Your Boss Gives Special Privileges to Those Employees That Do

Your boss gives special privileges to those employees that do a good job such as allowing them to leave early or take longer lunches.She is using which of Taylor's principles of Scientific Management?

A) Each job should be analyzed so that the optimal way of doing a task is identified.
B) Employees should be carefully trained for their jobs.
C) Employees should be hired so that their personal characteristics are related to job performance.
D) Employees should be rewarded for productivity to encourage high levels of performance.