$86\mathrm{.}2\%$ complete

Question

The IT team of a large multinational corporation is working to improve the security of their remote access services. They plan to implement Remote Authentication Dial$-$In User Service $($RADIUS$)$ to enhance the authentication process for remote users. RADIUS provides a centralized authentication and authorization mechanism for users connecting from various locations. The IT team evaluated different authentication protocols alongside RADIUS to ensure a strong and secure remote access solution. Which choice of authentication protocols would be MOST appropriate to complement RADIUS for the company's remote access solution?