In the IS-IS network shown in the figure, RTA, RTC, RTD, and RTE establish Level-2 adjacency relationships with each other. RTB establishes Level-1 adjacency relationships with RTA and RTC. After the routing of each router is stable, when RTB accesses 192.168.14.1, the next hop is selected as _________.

In the IS-IS network shown in the figure, RTA, RTC, RTD, and RTE establish Level-2 adjacency relationships with each other. RTB establishes Level-1 adjacency relationships with RTA and RTC. After the routing of each router is stable, when RTB accesses 192.168.14.1, the next hop is selected as _________.

If RTA and RTC add the following configurations respectively at this time:

RTA-isis-1] import-route isis level-2 into level-1

RTC-isis-1] import-route isis level-2 into level-1

Then when RTB accesses 192.168.14.1, the next hop is ________.