Which three of the following Cisco Unified Presence services must be activated manually in order for Cisco Unified Presence to operate? (Choosethree.)
A. Cisco UP Sync Agent
B. Cisco UP XCP Directory Service
C. Cisco UP Config Agent
D. Cisco UP Presence Engine
E. Cisco UP OAM Agent
F. Cisco UP SIP Proxy
G. Cisco UP XCP Router
H. Cisco UP Client Profile Agent
