A project is financed with 60% contribution from shareholders and the rest with debt The debt is a 5-year loan with a rate of 12% per year. Shareholder return is calculated with CAPM considering a beta of 1.8, the market return of 17.8% and the government bond rate of 5.2%. If the tax rate is 40%, What is the weighted average cost of capital to consider in this project? a. 12.92% b. 19.61% c. 20.53% d. 27.88%