What caused this problem?

A company has a 4-node ONTAP cluster called “cl01”. Each node uses two UTA2 ports for data traffic, so that LAN traffic and SAN traffic pass over the same physical ports. A storage virtual machine called “svm1” is created and enabled for iSCSI only. An administrator creates a LUN in svm1 and maps it to an igroup. Storage is scanned on the end host, but the LUN is not visible.

What caused this problem?
A . The SVM firewall policy blocking port 3260 on the data LIFs
B . The igroup does not contain the appropriate initiators
C . Switch zoning is not configured properly to allow connectivity
D . One of the Ifs is not online and communicating with the end host.

Answer: D