Explain Exhibit B and convince your client that which portfolio is the best one and why.

Exhibit B: \begin{tabular}{l|r|r|} \hline CAPM & Required Return & Average Annual Return \\ \hline Portfolio A & 8.32% & 9.19% \\ \hline Portfolio B & 9.13% & 11.05% \\ \hline Portfolio C & 7.64% & 5.15% \\ \hline Portfolio D & 9.26% & 8.87% \\ \hline risk free rate & 1% & \\ \hline risk premuim & 8% & \\ \hline \end{tabular}