According to the Principles of Scientific Management, the Best Way

According to the principles of scientific management, the best way to improve productivity is to:

A) give employees greater recognition for their efforts.
B) establish open two-way communications among all of the organization's employees and managers.
C) use time-motion studies to find the best method of doing each job, then teach those methods to employees.
D) use job rotation and job enlargement to make work more interesting and challenging.