When enabling Jumbo Frames for iSCSI operations, which of the following is true?

A.
It is a tunneling feature and only needs to be supported at the endpoints.

B.
It is incompatible with IPSec due to encryption functionality.

C.
Recommended size for Jumbo is 64K, which is max size of a SCSI packet.

D.
Must be supported end to end or performance problems in the network may occur.