Which of the Following Represents the Preferred Hierarchy of Strategy $\rightarrow$

Which of the following represents the preferred hierarchy of strategy (i.e.,from the first strategy to be developed to the last to be developed) ?

A) corporate $\rightarrow$ business unit $\rightarrow$ functional
B) functional $\rightarrow$ business unit $\rightarrow$ corporate
C) corporate $\rightarrow$ business unit $\rightarrow$ divisional
D) business unit $\rightarrow$ divisional $\rightarrow$ functional