Referring to the output in the exhibit, what is the problem?

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Customer A is complaining that routes advertised from the CE2 router are not being received on the CE1 router. The physical topology of the network is CE1-PE1-PE2-CE2.The CE1-PE1 subnet is 172.16.1.0/24. The CE2-PE2 subnet is 172.16.2.0/24.PE1’s loopback is 192.168.3.1 and PE2’s loopback is 192.168.4.1.

Referring to the output in the exhibit, what is the problem?
A . No LSP exists between PE1 and PE2.
B . Route targets are not properly configured.
C . as-override is not configured in the VRFs.
D . family inet-vpn is not configured on the PEs.

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Answer: B