What is the primary function of the center circle in a soccer game?

The primary function of the center circle in a soccer game is to mark the area from which a kickoff is taken. When a game begins or restarts after a goal, the team taking the kickoff must do so from within this circle, ensuring that all players from the opposing team remain outside of the circle until the ball is in play. This rule is essential for maintaining fairness during the kickoff, as it provides a clear distance between players and prevents immediate pressure on the player taking the kick.

The other options do not accurately reflect the function of the center circle. For instance, it is not a resting area, nor is it designed for goalkeepers to take goal kicks. Additionally, while players may gather in various spots during breaks, the center circle's specific regulation and purpose are focused on the kickoff process.