Effectively Communicating the Strategic Vision Down the Line to Lower-Level

Effectively communicating the strategic vision down the line to lower-level managers and employees has the value of:

A) inspiring company personnel to unite behind managerial efforts to get the company moving in the intended direction.
B) helping company personnel understand why "making a profit" is so important.
C) making it easier for top executives to set stretch objectives.
D) helping lower-level managers and employees better understand the company's business model.
E) All of these.