💡 Detailed Explanation
The correct choice is 'かいじょう' (会場 - venue/place where an event is held). In the context of a meeting or conference, the place ('場所' - basho) is synonymous with the venue ('会場' - kaijō). Sentence translation: 'Where is the venue/place for tomorrow's meeting?' 'よてい' means plan/schedule. 'じかん' means time. 'りゆう' means reason.