Which of the following statements is CORRECT? a. Since the money is readily available, the after-tax cost of reinvested earnings (not newly issued stock) is usually much lower than the after-tax cost of debt. b. If a company's tax rate increases but the YTM on its noncallable bonds remains the same, the after-tax cost of its debt will fall. c. When calculating the cost of preferred stock, a company needs to adjust for taxes, because preferred stock dividends are deductible by the paying corporation. d. All else equal, an increase in a company's stock price will increase its marginal cost of new common equity, re. e. All else equal, an increase in a company's stock price will increase its marginal cost of reinvested earnings (not newly issued stock), rs.