What are two functions of the SIP connection between Cisco Unified Communications Manager and Cisco Unified Presence? (Choose two.)

What are two functions of the SIP connection between Cisco Unified Communications Manager and Cisco Unified Presence? (Choose two.)
A . The SIP connection handles the database synchronization from Cisco Unified Communications Manager.
B . Configuring Cisco Unified Communications Manager as a Presence Gateway allows Cisco Unified Presence to send SIP subscribe messages to Cisco Unified Communications Manager over the SIP trunk.
C . Cisco Unified Presence supports clients (Cisco clients or third party) connecting to Cisco Unified Presence using a SIP connection over TC
E . Cisco Unified Presence supports clients (Cisco clients or third party) connecting to Cisco Unified Presence using a SIP/SIMPLE interface over TL
G . The IM and Presence Service synchronizes all user information from Cisco Unified Communications Manager using the SIP interface.

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Answer: BC