Question 4 1 pts According to Modigliani-Miller with corporate taxes, which of the following statements most accurately describes the optimal capital structure of a firm? O A firm's optimal capital structure would be 100% debt. O A firm's optimal capital structure would be the one where the marginal tax shelter benefits are equal to marginal bankruptcy-related costs. O A firm's optimal capital structure would be zero debt. O A firm's value is not affected by its capital structure