ABC company has a Cisco Unified CM version 9.1 cluster with seven nodes. The Publisher server suffered a catastrophic hard disk failure without Cisco Disaster Recovery System backups. Which method to restore the Publisher node is valid? 

Answer options:

A. Take a full DRS backup from all subscribers and reinstall the Publisher from that backup.
B. Promote one of the remaining subscriber to Publisher, then install a new subscriber.
C. The Publisher node cannot be restored, but the remaining subscribers should be sufficient to support the Collaboration devices and services.
D. Reinstall the publisher node and restore the Publisher database from a subscriber database.
E. Take a DRS backup from a subscriber and reinstall the Publisher from that backup.

B