Which statement about inter-AS MPLS VPN Option_B is false?

Exhibit:

Which statement about inter-AS MPLS VPN Option_B is false?
A . The ASBR cannot be used as a PE simultaneously and a CE cannot be connected to an ASB
C . When ASBRs are directly connected, packets transmitted on the VPN between them have only one label.
D . The undo policy vpn-target command must be configured in the VPN4 address family view of the BGP neighbor of the ASBR to prevent routes from being filtered automatically.
E . When ASBRs are directly connected, VPN traffic can be forwarder between them only after MPLS is enabled on the interfaces.

Answer: A