Context: I assured her before leaving her home . It was no trouble to take the boat back across the river to Vos . It did n't take long at all plus the female shipmaster - who was obviously starved for a man and was making eyes at Julan - only charged us a single gold coin to take us to the Vos docks . When we reached Vos , a male Dunmer noticed Julan and exclaimed , " Aha , my best customer !

Question: Why is the narrator convinced that the boat can return to its dock ?
Options:
0. The narrator believes the River Vos is navigable .
1. The narrator believes the River Vos is drained of water .
2. None of the above choices .
3. The narrator believes the River Vos is dangerous .
Answer: 0