Which DECnet configuration files need to be kept synchronized in an OpenVMS cluster?

Which DECnet configuration files need to be kept synchronized in an OpenVMS cluster? Select TWO.

A.
NETOBJECT.DAT

B.
NET$MANAGE.DAT

C.
NET$SECURITY.DAT

D.
NETNODE_LOCAL.DAT

E.
NETPROXY.DAT/NET$PROXY.DAT