What are three ways you can enforce a BCP38 policy on an Internet edge device?
(Choose three.)

A.
Avoid RFC 1918 internal addressing.

B.
Apply ingress filters for RFC 1918 addresses

C.
Apply ingress ACL. Filters for BOGON routes

D.
Implement source NAT

E.
Implement Unicast RPF.

F.
Implement Cisco Express Forwarding.