Where are users managed and their data stored in Cisco Unified Communications Manager Express?

Where are users managed and their data stored in Cisco Unified Communications Manager Express?

A.
in Communications Manager Express with user data stored in the Communications Manager Express database

B.
in Application Administration with user data stored in the Communications Manager Express database

C.
in Application Administration with user data stored in the Cisco Unified Contact Center Express database

D.
in Communications Manager Express with user data stored in the Cisco Unified Contact Center Express database