When an agent-initiated IP call is transferred to a queue in the Cisco Unified Contact Center Enterprise using the Cisco Unified CVP 3.1, what must be allocated to support this call flow?

A.
MOH resources on Cisco Unified Communications Manager

B.
MTP resources

C.
Cisco Unified CVP Call Servers configured to accept an IP call media stream

D.
remote CTI port configured with MoH