What is the recommended format for host names when using the VxRail Deployment Wizard for an External vCenter solution?

What is the recommended format for host names when using the VxRail Deployment Wizard for an External vCenter solution?
A . FQDN for vCenter Server – Host name for VxRail Manager
B . Host name for both vCenter Server and for VxRail Manager
C . FQDN for both vCenter Server and for VxRail Manager
D . Host name for vCenter Server – FQDN for VxRail Manager

Answer: A