Which type of interface is created on the Cisco Nexus 5548 Switch to represent ports connected to a FEX?

Which type of interface is created on the Cisco Nexus 5548 Switch to represent ports connected to
a FEX?

A.
HIF (host interface)

B.
LIF (logical interface)

C.
connected Ethernet

D.
SIF (satellite interface)

E.
VIF (virtual interface)