Adamson Corporation is considering four average-risk projects with the following costs and rates of return: \begin{tabular}{ccc} Project & Cost & Expected Rate of Return \\ \hline 1 & $2,000 & 16.00% \\ 2 & 3,000 & 15.00 \\ 3 & 5,000 & 13.75 \\ 4 & 2,000 & 12.50 \end{tabular} 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}{l|l|} \hline Project 1 & -Select- \\ \hline Project 2 & Select- \\ \hline Project 3 & Select- \\ \hline Project 4 & Select- \\ \hline \end{tabular}