which entity does a Cisco Unified Personal Communicator device receive its TFTP server address when it is integrated with a Cisco Unified Presence Server for failover?

From which entity does a Cisco Unified Personal Communicator device receive its TFTP server address when it is integrated with a Cisco Unified Presence Server for failover?

A.
Cisco Unified Presence server

B.
Cisco Unified Communications Manager TFTP server

C.
Device profile in Cisco Unified Communication Manager

D.
Manually created upon installation of Cisco Unified Personal Communicator

E.
Cisco Unified Personal Communicator does not use TFTP.

Explanation:
Cisco Unified Personal Communicator connects to the primary TFTP server (whose address is retrieved from Cisco Unified Presence) at startup.