How can shared services in an MPLS Layer 3 VPN provide Internet access to the customers of a central service provider?

How can shared services in an MPLS Layer 3 VPN provide Internet access to the customers of a central service provider?
A . The CE router can establish a BGP peering to a PE router and use the PE device to reach the Internet
B . Route distinguishes are used to identify the routes that CEs can use to reach the Internet
C . The customer VRF uses route targets to import and export routes to and from a shared services VRF
D . Static routes on CE routers allow route leakage from a PE global routing table

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Answer: C