Which configuration enables a Cisco Unified Contact Center Express server to fail over to a secondary Cisco Unified Communications Manager server when the primary server fails?

A.
Configure LDAP with a secondary profile.

B.
Configure a second Cisco Unified Communications Manager telephony user with an alternate range of CTI ports.

C.
Configure the telephony provider with a primary and secondary Cisco Unified Communications Manager IP address.

D.
No special configuration is needed.

Explanation: