What is the benefit of integrating FortiAuthenticator with Active Directory for single sign-on?

What is the benefit of integrating FortiAuthenticator with Active Directory for single sign-on?
A . It prevents any user logon events from being recorded
B . It allows users to authenticate using only their email addresses
C . It centralizes user management and reduces password fatigue
D . It requires users to use different credentials for different resources

Answer: C