please answer A B and C

\begin{tabular}{cccccc} Project & Year 0 & Year 1 & Year 2 & Year 3 & Year 4 \\ \hline A & $101 & $23 & $29 & $41 & $48 \\ B & $101 & $48 & $41 & $29 & $21 \\ \hline \end{tabular} a. What is the IRR of each project? b. What is the NPV of each project at your cost of capital? c. At what cost of capital are you indifferent between the two projects? d. What should you do? \begin{tabular}{cccccc} Project & Year 0 & Year 1 & Year 2 & Year 3 & Year 4 \\ \hline A & $101 & $23 & $29 & $41 & $48 \\ B & $101 & $48 & $41 & $29 & $21 \\ \hline \end{tabular} a. What is the IRR of each project? b. What is the NPV of each project at your cost of capital? c. At what cost of capital are you indifferent between the two projects? d. What should you do