When using Cisco Unified Communications Manager IM and Presence Service in a federated network configuration, which statement about Message Archiver is true?

A.	The sender cluster sends the message to the remote cluster before archiving it.
B.	Message Archiver is not supported in a federated network configuration.
C.	The sender cluster archives the message before sending it to the remote cluster.
D.	The message is archived on the remote cluster only.