13. The appropriate WACC of a firm is 6.43%. With risk-free rate of 4%, market return of 8%, prevailing credit spread of 3%, tax rate of 30% and Equity ratio of 30%, compute for the volatility of stocks or Beta. a. 1.00 b. 1.25 -400 C. 1.50 d. 1.75 4% - 30% 30% 2 2 (RC -R4/km Rf