A dividends$-$distributing firm is reconsidering its approach to its financial structure from a TOT $($Trade$-$Off Theory$)$ view of the world to a POT $($Pecking Order Theory$)$ view of the world. The main difficulty it will encounter to do so$,$ will relate to:

A$.$ Its distribution policy.

B$.$ The reluctance of lenders to keep financing the firm

C$.$ The reluctance of managers to change

D$.$ Maintaining its RoCE at the current level

E$.$ Its cost of debt which could increase significantly

F$.$ Its tax$-$rate which is influenced by the financial structure of the firm