What restrictions apply to players until the ball touches the ring or backboard or the free throw ends?

The correct answer is that restrictions apply to all players until the ball touches the ring or backboard, or until the free throw ends. This means that during a free throw situation, players on both offense and defense must adhere to specific guidelines to ensure the free throw is conducted fairly.

When a player is taking a free throw, all players besides the shooter must remain behind the three-point line and not enter the key until the ball has touched the basket (ring or backboard). This rule is in place to prevent any unfair advantages or premature movement which could disrupt the shooting process. The shooter is allowed to focus on their shot without interference from opponents encroaching the space around the free throw line.

The restrictions on all players contribute to the integrity of the free throw, making it a controlled and fair opportunity for the shooter. Thus, understanding these restrictions is essential for players to comply with the rules, allowing for a smoother flow of the game and maintaining fairness during free throws.