An engineer is troubleshooting operation performance in the network. Which account should be taken to restore high availability in the sub cluster?

An engineer is troubleshooting operation performance in the network. Which account should be taken to restore high availability in the sub cluster?
A . Start all critical services on the second node, and select the Fallback button in the "Presence Redundancy Group Configuration"
B . Go to "Presence Redundancy Group Configuration" on the Cisco UCM Administration page and select the Fallback button.
C . Start all critical services on both nodes and select "rebalance users" in the "Presence User Assignment"
D . Go to "Presence User Agreement" on the Cisco UCM Administration page and select "rebalance users" for all users.

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Answer: A