Is there a prohibition on coaches using cards or signs to communicate with players during the game?

The correct response indicates that coaches are prohibited from using cards or signs to communicate with players during a game. This rule is in place to ensure that all communication happens within the flow of play, allowing the game to progress without interruptions or potential advantages that could arise from predefined signals. This prohibition helps maintain the integrity of the competition, as players must rely on their own understanding of the game and their training rather than external signals from the bench.

In contrast to this, the other options suggest varying degrees of permission or conditions under which coaches might communicate with players through signs. However, the standard rule across all levels of play is clear in limiting such forms of communication during the game itself to uphold a level playing field where on-court decision-making skills are paramount. Therefore, option A accurately captures the essence of the regulations in basketball pertaining to coach-player communication during gameplay.