Which two statements describe primary differences between MPLS Layer 2 and Layer 3 VPNs? (Choose two.)

Which two statements describe primary differences between MPLS Layer 2 and Layer 3 VPNs? (Choose two.)
A . Layer 2 VPNs use IPsec tunneling, but Layer 3 VPNs use L2TPv3 tunneling.
B . Layer 2 VPNs use AToM, but Layer 3 VPNs use MPLS/BG
D . Layer 2 VPNs use BGP, but Layer 3 VPNs use VPL
F . Layer 2 VPNs use L2TPv3 tunneling, but Layer 3 VPNs use GRE tunneling.
G . Layer 2 VPNs use IPsec tunneling, but Layer 3 VPNs use pseudowires to provide tunneling.

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Answer: BD