After taking Jethro's advice to use a clearly defined hierarchy of authority while delegating...

After taking Jethro's advice to use a clearly defined hierarchy of authority while delegating work, Moses ...........

A) found himself even more involved in the daily affairs of labour

B) removed the supervisors and managers controlling the workers

C) selected workers based on the sole criteria of leadership skills

D) could focus on the more difficult problems of the state

E) worked alone, although it was too much work for one person