Which two statements about 6PE are true? (choose two)
A. iBGP peering between the PE routers should be done using an IPv6 address.
B. It does not require MPLS between the PE routers.
C. It requires a VRF on the IPv6 interface
D. It requires BGP to exchange labeled IPv6 unicast between PE routers
E. Uses an IPv4-mapped IPv6 address as the IPv4 next-hop on PE router
