Which statement about route targets when using VRF-Lite is true?

Route targets (RTs) are extended BGP communities used in MPLS VPNs and VRF-Lite to control the import and export of routes between different VRF instances. Each VRF is configured with import and export RTs. A route is imported into a VRF if its export RT matches one of the VRF's import RTs. This mechanism allows for flexible routing policies and shared services. The statement "When BGP is configured, route targets are transmitted as BGP standard communities" is incorrect because RTs are extended communities, not standard communities. "Route targets allow customers to be assigned overlapping addresses" is incorrect; overlapping addresses are enabled by VRFs themselves, not specifically by RTs. "Route targets uniquely identify the customer routing table" is incorrect; the VRF name or Route Distinguisher (RD) uniquely identifies the routing table.