Which option is available for alerting in the event of a failure on a Centera CE+ Plus?

A.
Email home (SMTP) via modem directly attached to a Storage Node

B.
Email home (SMTP) via modem directly attached to a Storage Node and SNMP

C.
Email home via the OnAlert workstation also running SMTP, Control Center v5.2, SNMP

D.
No remote alerting; customer needs physical access to the array to be notified of failures