What is the expected outcome if the administrator attempts to disable the iSCSI Software adapter?

A vSphere 5 environment has an ESXi 5 x host configured to boot from a Software iSCSI adapter.

What is the expected outcome if the administrator attempts to disable the iSCSI Software adapter?

A.
The adapter will be disabled, but is re-enabled the next time the host boots up.

B.
The adapter will be disabled and the host will not boot the next time the host boots up

C.
The adapter will not be disabled and the vSphere Client will return an error message

D.
The adapter will be enabled, but the host will boot into troubleshooting mode the next time the host boots

Explanation:

http://pubs.vmware.com/vsphere-50/index.jsp?topic=/com.vmware.vsphere.vcenterhost.doc_50/GUID-3B5AF2B1-C534-4426-B97A-D14019A8010F.html