A.
A ticket allowing one simultaneous entry for a group of 15 or more. Prices are 6,300 yen for adults, 3,500 yen for juniors (12 to 17 years old), and 1,500 yen for children (4 to 11 years old).
https://ticket.expo2025.or.jp/en/faq/
https://ticket.expo2025.or.jp/en/faq/