One of the Celerras in the data center dropped all client access suddenly. Upon further
investigation, you discover that the primary blade is in a panicked state but did not fail over to the standby blade.

What is one possible cause for this?

A.
The Control Station was powered off.

B.
The standby blade was running at reason code 5.

C.
The primary blade was unable to ping the standby blade.

D.
The Control Station had NAS services started.