Consider the tradeoff theory of capital structure with corporate taxes and bankruptcy costs. Which of the following statements is/ are correct? I) Firm value always increases as more debt is added II) Firm value stays constant as more debt is added III) WACC always decreases as more debt is added IV) WACC always increases as more debt is added V) WACC stays constant as more debt is added I and III only I and /V only 11 and V only None of the statements are correct II and ill only