How is a functional structure or unitary structure organized?

Select one:

A$.$ with a central executive handling all major decisions

B$.$ to lighten the load of senior executives so they can concentrate on value chain action agendas

C$.$ with top$-$heavy management, and senior executives forming a central office of the chairman

D$.$ specifically to manage unrelated diversification opportunities

E$.$ into functional departments, with departmental managers who report to the CEO and small corporate staff