1.A firm's WACC is 19%, its required return on equity is 23%, and its after-tax cost of debt (i.e., effective cost after tax deductions) is 6%.What proportion of the firm's capital structure is debt, and what proportion is equity?

a.44.9% debt, 70.9% equity

b.80.5% debt, 24.1% equity

c.51.5% debt, 48.5% equity

d.19.1% debt, 80.9% equity

e.23.5% debt, 76.5% equity