If a customer using BGP as a PE to CE routing protocol is connected to two VPN’s there is a problem because the customer router will not be able to route between the two VPN’s due to the provider AS number being the same for both, which is rejected in standard BGP.
What is a BGP facility that can provide a workaround to this problem?

A.
AS-transparent

B.
AS-passthrough

C.
No-ascheck

D.
Allowas-in