Refer to the exhibit.

To achieve this, router 2 should use a route map to filter the routes being redistributed from BGP into OSPF. Specifically, the route map should match the internal route from Lo 2 (which is the loopback interface on router 2) and allow only that route to be redistributed. The other options do not achieve this specific requirement. References: Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) source book.