When comparing Cisco Nexus 2000 Series Fabric Extenders to traditional top-of-rack switches, which two statements are true?

A.	Management functions are performed on the Fabric Extender.
B.	Fabric Extenders offload the switching of traffic from the parent.
C.	Fabric Extenders lower oversubscription in the data center.
D.	Physical interfaces are represented by the parent switch as logical interfaces.
E.	Fabric Extenders operate as a remote line card to the upstream switch.