Your customer has 1200 users. The users are spread evenly across three routing groups in one

Exchange 2000 organization. Each routing group is in a different geographical location within a
single phone system. You need to configure a voice-mail-only solution with a plan to migrate to
unified messaging. They must have the ability to send an all-employee message to one
distribution list and have the Automated Attendant search for all users by name regardless of the
location. Which configuration meets the customer requirements?

A.
a new forest/domain with one Cisco Unity system in the existing root Exchange routing groups

B.
a new forest/domain with one Cisco Unity system in each new Exchange routing group

C.
a new forest/domain with three Cisco Unity systems in each new Exchange routing group

D.
There is no Cisco Unity solution that fits this Exchange 2000 configuration.