Answer:
D. 12.61%
Step-by-step explanation:
The weight average cost of capital (WACC) is calculated as below:
WACC = After-tax cost of debt x Weight of debt = Cost of equity x Weight of equity.
Note: In this exercise, we will yield to maturity of company's as before-tax cost of debt.
Putting all the number together, we have:
WACC = 7.6% x (1 - 34%) x 21% + 14.63% x 79% = 12.57%, which is closet to option D (12.61%)