What is the rule regarding the use of a ball marker?

The requirement to mark the spot before lifting the ball is essential to ensure that the ball can be replaced accurately in the same location after it has been lifted. This rule helps maintain the integrity of the game, providing clarity on where the ball originally lay on the course. By marking the spot, players prevent any confusion that might arise from lifting the ball for reasons such as cleaning or identifying it.

The other options do not align with the established rules. For instance, while many objects can serve as ball markers, there are guidelines about what constitutes an acceptable marker, emphasizing the importance of using a distinct and recognizable object. Additionally, the marker must be visible to ensure fairness and transparency in gameplay. Lastly, the timing of marking the ball is flexible; players can mark their ball at various stages, not limited to just after putting. Understanding the marking rule is crucial for conducting oneself properly on the course and adhering to the regulations of the game.