💡 Detailed Explanation
Translation: School starts at 8:30.
- がっこう (gakkō) means 'school' and is written as 学校.
- Kanji Breakdown: 学 (study, learning) + 校 (school building, examination).
- Choices explanation: Only 「学校」 is a valid Japanese word. The other options are incorrect combinations of kanji with similar-sounding readings like 交 (こう), 楽 (がく/らく).