Which two are true of an NFS repository when used with Oracle VM?

Which two are true of an NFS repository when used with Oracle VM?

A.
NFS is supported for use in RAC only when mounted from the guest (not domO).

B.
NFS repositories are excellent for storing guests’ root file systems.

C.
NFS is a more expensive option than iSCSI or SAN fabrics.

D.
OCFS2 must be used as the filesystem format for volumes exposed through NFS.

E.
NFS shares mounted directly in a guest require the DM-NFS driver to be installed
on the guest.