Which service feature enables the Cisco MDS 9000 Series hardware to automatically open a case with Cisco TAC when availability-impact events occur?

Which service feature enables the Cisco MDS 9000 Series hardware to automatically open a case with Cisco TAC when availability-impact events occur?

A.
Cisco Service Manager

B.
Cisco Technical Support Services

C.
Cisco NAC

D.
Cisco AutoNotify Service