How does a hardware FCoE Adapter appear to an ESXi host?

A.
As an uplink adapter attached to a vSphere Distributed Switch.

B.
As a hardware FCoE Adapter.

C.
As an enabled FCoE software initiator.

D.
As a Fibre Channel Adapter.

Explanation:
http://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc_50%2FGUID-A9503ED6-2622-4278-890E-B869C3971A9F.html