You are asked to design a Layer 2 VPN service for a service provider network that supports Ethernet and ATM transport. Which two Layer 2 VPN technologies will meet this requirement? (Choose two.)
A.
LDP-signaled VPLS, using draft martini encapsulation
B.
BGP-signaled VPLS, using the RFC 4448 Layer 2 frame format
C.
LDP Layer 2 circuit, using the RFC 4448 Layer 2 frame format
D.
BGP Layer 2 VPN, using draft-Martini encapsulation