4. For a typical firm, which of the following sequences is most likely to be CORRECT? All rates are after taxes, and assume that the firm operates at its target capital structure. As a reminder: r is the rate of return required by common stockholders is the rate of return required by preferred shareholders and rais the rate of return required by bondholders. a. r>rp>rd > WACC. b. r>rp> WACC > c. WACC>rs >rp> d. Id >>> WACC. e. WACC >rd > Tp>Is