A large enterprise customer has the following description:

nearly 25,000 employees
headquarters in Europe
branches in the US, Middle East, and Asia
desire to deploy IP telephony
voice, video, web sessions with up to 600 users

Which two solutions are most appropriate for this customer? (Choose two.)

A.
installation of one or more Cisco Unified Communications Manager clusters

B.
installation of Cisco Unified Communications Manager Express on multiple Cisco 3845 Integrated Services Routers

C.
Cisco Unified MeetingPlace Express

D.
Cisco Unified MeetingPlace

E.
Cisco Unified Contact Center Hosted

F.
WebEx