When is it necessary to configure an IP Address range on the Secondary MDS?

When is it necessary to configure an IP Address range on the Secondary MDS?

A.
When Selectively backing up a specific CMA from the Primary MDS

B.
When configuring the Secondary MDS for Management High Availability

C.
When mirroring the Primary MDS to the Secondary MDS

D.
When the Secondary MDS is located outside the NOC configuration

E.
When configuring the Secondary MDS as an MLM