Refer to the Exhibit.

Server A and Server B are running two different applications on SRDF R1 devices on the source Symmetrix. All
R1 devices belong to the same RDF group. Both applications are replicated with SRDF/S. Server B has failed.
Which step is needed to restart the Server B application on Server D at the remote site?

A.
Execute SRDF failover for the Server B devices

B.
Execute SRDF failover for all devices in the RDF group

C.
Shut down Server A and then execute SRDF failover for all devices in the RDF group

D.
Halt the application on Server A and then execute SRDF failover for all devices in the RDF group