Which statement is true about the libero's ability to serve?

The libero has specific restrictions when it comes to serving, reflecting their unique role on the team. The statement about the libero being allowed to serve only in one position in the serving order is accurate. This means that when the libero enters the game to serve, they must serve from a predetermined position in the rotation and cannot serve from multiple positions or rotate in and out of different serving spots.

This limitation is put in place to maintain the integrity of the game and to ensure that the libero's specialized role as a defensive player is not overly advantageous regarding serving, which is usually a component of offensive play. Therefore, the libero's ability to serve is designed to enhance gameplay while keeping the dynamics between players balanced. Other statements regarding the libero's ability to serve do not reflect the regulations around the libero's participation in serving roles.