Which two statements regarding Cisco 6PE operations are correct? (Choose two.)

A.
The top label in the label stack is assigned by MP-BGP, and it is used to reach the egress PE.

B.
The inner label in the label stack is assigned by MP-BGP, and it is used for IPv6 forwarding at
the egress PE.

C.
The top label in the label stack is assigned by LDP, and it is used to reach the egress PE.

D.
The inner label in the label stack is assigned by LDP, and it is used for IPv6 forwarding at the
egress PE.

Explanation:

http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6553/prod_presentation0900aecd8
0311df4.pdf