All of the Following Are Included in Taylor's Four Principles

All of the following are included in Taylor's four principles of management except?

A) Develop a science for every job to replace old rule-of-thumb methods
B) Systematically select workers so that they fit the job, and then train them effectively
C) Closely monitor employees to make sure that they are following the science for their job
D) Support workers by carefully planning their work and smoothing the way as they do their jobs
E) Offer incentives so that workers behave in accordance with the science of the job