William was a factory worker in the $1920$s$.$ His company trained him in the exact sequence of steps he needed to make each day so that he would work to maximum productivity.$$ William's company was using the principles of$\_\_\_\_\_\_\_\_.$

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Part $1$

A$.$

uncertainty management

B$.$

$$strength$-$based management

C$.$

Theory Z management

D$.$

management by objectives

E$.$

scientific management