Which of the following statements regarding data packet processing are true?

In a MPLS VPN network, two-layer MPLS labels are added into data packets before they are transmitted over the public network.

Which of the following statements regarding data packet processing are true? (Multiple Choice)
A . The penultimate hop removes the outer label before forwarding the data packet to a peer PB
B . The IP data packet received by the peer PE does not carry labels.
C . The penultimate hop removes the outer label if the outer label in the data packet is explicit null label 3.
D . The peer PE sends the data packet to the correct VPN based on the inner label.

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Answer: AD