On a corner kick, where must the ball be positioned?

The ball must be positioned in the corner arc when a corner kick is taken. This is crucial because the corner arc is designed specifically to provide the correct spot for the ball to be placed for this particular type of restart. According to the Laws of the Game, the ball must be placed within the quarter-circle at the corner; this area demarcates where the corner kick is executed.

Placing the ball correctly in the corner arc ensures that both teams understand where the play will restart and reduces confusion during the game. It also allows the attacking team to deliver the ball from a consistent position, which is important for gameplay strategy.

The other options do not align with the rules for taking a corner kick, as the six-yard box is reserved for goal kicks and the goalkeeper's actions, the goal line is where the ball goes out of play, and being out of bounds means the ball is not in a playable position at all.