In the real-world where corporate profits are taxed, interest payments are tax deductible, there are costs of financial distress when firms get into financial trouble, there is asymmetric information between investors and corporate insiders, etc, then which of the following are true? A. Firm value increases and WACC decreases initially as more debt is added to the firm's capital structure, however, there comes a point where adding additional debt generates potential costs of financial distress that outweigh the benefits of further reducing taxes. After this point, firm value starts to decrease and WACC starts to increase as more debt is added. B. Firm value and WACC are independent of the firm's capital structure. C. Each firm has an optimal capital structure where WACC is maximized. D. Firm value increases and WACC increases initially as more debt is added to the firm's capital structure, however, there comes a point where adding additional debt generates potential costs of financial distress that outweigh the benefits of further reducing taxes. After this point, firm value and WACC start to decrease as more debt is added. E. Each firm has an optimal capital structure where firm value is minimized.