Which benefit of this feature should the architect explain?

A customer has very high availability requirements for wireless services. The architect plans to implement clustering on several Aruba Mobility Controllers (MCs).

Which benefit of this feature should the architect explain?
A . Clustering provides wireless client load balancing and seamless failover for client sessions.
B . Clustering provides high stability because one MC is active for all sessions and one is standby for all sessions.
C . Clustering enables an AP with a failed MC to operate on its own briefly to ensure seamless connectivity.
D . Clustering enables an AP with a failed MC to reconnect to a new AP after a short bootstrap.

Answer: B