Which statement about Cisco Unified Presence and LDAP is true?

A.
Cisco Unified Presence must be integrated with LDAP.

B.
LDAP integration is mandatory if Cisco Unified Personal Communicator is used as a client.

C.
LDAP integration with Cisco Unified Presence is optional. However, user search functionality in
Cisco Unified Personal Communicator will not be available.

D.
LDAP integration with Cisco Unified Presence is optional. However, instant messaging
functionality in Cisco Unified Personal Communicator will not be available.

Explanation: