Given the following reasoning and answer, what was the question? Conference is a formal meeting of people with a shared interest. Conference is held in a conference hall.
 The answer: conference

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 sort of hall do you have a large meeting in?
Options:
- church
- conference
- dormitory
- large building
- library