People want to explore space, so what should they use to do it?
Options:
- public place
- roadblock
- space shuttle
- hoverboard
- supermarket Let's give stream of consciousness first:

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
Space shuttles are the vehicles used to travel to space. People must use space shuttle to explore space.
Therefore, the answer is space shuttle.