Final answer:
The main idea of the section would be Simone Biles' historic achievements in gymnastics at the World Championships, detailing the records she set or broke and the overall impact on the sport.
Step-by-step explanation:
The main idea of the section titled "Biles Makes History At World Gymnastics Championships" likely centers on the accomplishments of the gymnast Simone Biles. This could include details of the specific records she set or broke, the skills she performed, and the significance of her achievements at the World Championships.
This main idea serves to inform the reader about Biles' historical impact in the sport of gymnastics and likely highlights her athleticism, dedication, and success within the competitive gymnastics community. Such a section would generally be structured to showcase the events leading to her making history, the reception of her accomplishments, and the subsequent influence on the sport.