What is the purpose of the Destination VIF field in the VNTag header?

A.
identify the physical satellite port on a Cisco Nexus 2000 Series fabric extender

B.
identify the virtual satellite port on a Cisco Nexus 2000 Series fabric extender

C.
identify the physical satellite port on a Cisco Nexus 7000 Series Switch

D.
identify the fabric port on a Cisco Nexus 2000 Series fabric extender