Company XYZ finds itself using more cloud-based business tools, and password management is becoming
onerous. Security is important to the company; as a result, password replication and shared accounts are not
acceptable. Which of the following implementations addresses the distributed login with centralized
authentication and has wide compatibility among SaaS vendors?

A.
Establish a cloud-based authentication service that supports SAML.

B.
Implement a new Diameter authentication server with read-only attestation.

C.
Install a read-only Active Directory server in the corporate DMZ for federation.

D.
Allow external connections to the existing corporate RADIUS server.