Which statement is true about Virtual SANs (VSANs) and role based security?

Which statement is true about Virtual SANs (VSANs) and role based security?

A.
Role based security is available on a per VSAN basis.

B.
Role based security cannot be implemented when VSANs are used.

C.
VSAN administration must be implemented on the principle switch of the fabric.

D.
Role based authentication is propagated throughout the fabric via the Fibre Channel Protocol (FCP).