debt, and 10% preferred stock. a. What is the cost of each of the capital components? Do not round intermediate calculations. Round your answers to two decimal places. Cost of debt: % Cost of preferred stock: % Cost of retained earnings: % b. What is Adamson's WACC? Do not round intermediate calculations. Round your answer to two decimal places. % c. Only projects with expected returns that exceed WACC will be accepted. Which projects should Adamson accept? \begin{tabular}{ll} Project 1 & -Select- \\ Project 2 & -Select- \\ Project 3 & -Select- \\ \hline Project 4 & -Select- \end{tabular}