Which of the following statements about the cost of capital is(are) correct? A) Higher cost of equity can decrease the weighted average cost of capital. B) If a company's tax rate increases, then, all else equal, its weighted average cost of capital will increase. C) A company's target capital structure (debt, common stock and preferred stock) affects its weighted average cost of capital (WACC). D) Higher dividend payment can decrease the weighted average cost of capital. E) None of them