Answer: A) 9.7%
Step-by-step explanation:
Bank debt cost= bank rate debt
Cost equity = free risk rate + equity beta × market risk premium.
Weight in equity = outstanding equity / (outstanding equity + debt)
Weight in debt = 1 - weight in equity.
WACC = weight in equity × cost of equity + weight in debt × cost of debt × (1 - tax rate)
Cost of equity = 0.04 + 1 × 0.08= 0.12
weight in equity= 12 / (4 + 12) = 0.75 weight in debt = 1 - 0.75 = 0.25
WACC= 0.75 × 0.12 + 0.25 × 0.04 × (1 - 0.30) = 0.097 * 100 = 9.7%