Read the text below carefully and answers the questions number 1-4!
Yesterday, Sarah went to the park with her friends. While exploring the park, Sarah and her friends found a seesaw, slides, and monkey bars to play on, adding to their joy- filled day. They played on the swings and climbed trees. Sarah felt happy as she ran around with her friends. Suddenly, they saw a rainbow in the sky. They all cheered with delight. Sarah knew it was a special day they would always remember.
Why did Sarah and her friends cheer suddenly at the park?