Why Did Workers Experience the Introduction of Scientific Management as a Loss

Why did workers experience the introduction of scientific management as a loss of freedom?

A) Scientific management typically lowered wages.
B) Workers had to work longer hours under scientific management.
C) Safety conditions worsened when companies introduced scientific management.
D) Skilled workers under scientific management had to obey very detailed instructions.
E) Foremen tended to drive workers with more brute force under scientific management.