The projector displayed slides on the wall as the presenter talked to the audience. Billy wished he didn't come to this event. Where was he?
Options:
- movies
- meeting
- conference
- theatre
- show films
Let's think now! Step-by-step reasoning:

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
In conference, the slides are displayed on the walls. Slides are shown by the presenter in a conference.
So, the final answer is conference.