For a Carrier Supporting Carrier (CSC) VPRN where the customer carrier is an ISP that provides Internet connectivity to its end-customers, which of the following is FALSE?

For a Carrier Supporting Carrier (CSC) VPRN where the customer carrier is an ISP that provides Internet connectivity to its end-customers, which of the following is FALSE?
A . All traffic exchanged between end-customers is carried over a single CSC VRF.
B. Customer carrier PE routers residing in different sites must run eBGP between them to exchange customers’ routes.
C. The customer carrier network can be a pure IP network.
D. MPLS can be used in the customer carrier network to improve scalability.

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Answer: B