Consider the tradeoff theory of capital structure with corpo…

Cоnsider the trаdeоff theоry of cаpitаl structure with corporate taxes and bankruptcy costs. Which of the following statements is/ are correct? I) Enterprise value always increases as more debt is added II) Enterprise value stays constant as more debt is added III) The cost of capital always decreases as more debt is added IV) The cost of capital always increases as more debt is added V) The cost of capital stays constant as more debt is added