A company is adding a second data center for disaster recovery. The data centers connect
over a link supplied by a service provider with an IP network. The company wants a solution
that extends Layer 2 connectivity between the data centers and does not require any
special services from the service provider, such as MPLS. What can meet the needs for this
design?

A.
SPBM

B.
QEVI

C.
lRF

D.
VPLS