Context: Saturday we drove to Tampa to help Haley celebrate the big 0 - 9 . The party was held at the Isla Del sol contry club . It was a beautifully perfect day and all the kids had a great time in the pool .

Question: Why was the atmosphere at the event so festive ?
Options:
0. It was a day off for the kids .
1. It was a birthday .
2. It was a pool day for the kids .
3. None of the above choices .
Answer: 1