Which Cisco Unified Contact Center Enterprise CTI Desktop option requires the use of VoIP Monitor Server and SPAN port-based monitoring to support supervisor silent monitoring of agent calls?

A.
Cisco Unified Contact Center Enterprise Cisco Agent Desktop

B.
Cisco Unified Contact Center Enterprise CTI Object Server or Cisco Agent Desktop with Outbound option enabled

C.
Cisco Unified Contact Center Enterprise CTI Object Server Agent Desktop

D.
Cisco Unified Contact Center Enterprise CTI Driver for Siebel