An administrator is implementing a new SaaS application. The administrator has been directed to enhance the user authentication experience. Which of the following technologies BEST meets this requirem

Federation Services improve the user experience by enabling single sign-on across multiple applications, reducing the need for multiple logins, but it does not directly enhance the fundamental security or process of the authentication itself for a given application.

Multifactor authentication (MFA) significantly enhances the user authentication experience by adding a crucial layer of security beyond just a password, thereby increasing account protection while often streamlining login flows through convenient methods like push notifications.

Biometric authentication is a specific type of multifactor authentication, but MFA is a broader solution encompassing various methods to enhance both authentication security and user experience, making it a more comprehensive best choice.

Directory services provide the essential identity store for user authentication but do not inherently enhance the interactive authentication experience or its security aspects from the user's perspective.