Given that there are no taces and no costs of financial distress, as the proportion of debt in a company's capital structure increases: O A. The cost of equity decreases, but the WACC increases. OB. The cost of equity and the WACC decrease. OC. The cost of equity increases, but the WACC decreases. D. The cost of equity increases, but the WACC remains the same. E. The cost of equity and the WACC increase