Explanation : Bond yield plus risk premium is used to calculate cost of equity not cost of
debt. The other two are approaches to calculate cost of debt.
Explanation : The appropriate cost is the marginal cost of debt. The before-tax cost of
debt can be calculated by the yield to maturity on a comparable
outstanding. After adjusting for tax, the after-tax cost of debt is 8(1 –
0.35) = 8(0.65) = 5.2%.