A network architecture team is looking for a technology on Cisco Nexus switches that significantly simplifies extending Layer 2 applications across distributed data centers. The team wants the Cisco Data Center Interconnect between sites and without changing or reconfiguring the existing network design. Which technology should be used?

A.	Multiprotocol Label Switching
B.	Cisco FabricPath
C.	virtual switching system
D.	virtual port channel
E.	Overlay Transport Virtualization