Given the following reasoning and answer, what was the question? People usually travel along liquid via boats. Sailing boats is the type of passtime people engage in while traveling along liquid.
 The answer: sail boats

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The question What past time are people engaged in when they are traveling along liquid?
Options:
- sail boats
- question authority
- high fives
- share things
- learn from each other