Which of the following statements is CORRECT? Group of answer choices:

All else equal, an increase in a companys stock price will increase its marginal cost of new common equity, re.

If a companys tax rate increases but the YTM on its noncallable bonds remains the same, the after-tax cost of its debt will fall.

Since the money is readily available, the after-tax cost of retained earnings is usually much lower than the after-tax cost of debt.

All else equal, an increase in a companys stock price will increase its marginal cost of retained earnings, rs.