What is drawn through unused points in the score sheet at the end of a deciding set?

In volleyball, the practice of drawing a T-bar through the unused points in the score sheet at the end of a deciding set serves as a clear visual indicator that those points are not relevant to the final outcome of the match. This convention helps avoid any confusion for referees, players, and scorekeepers regarding the actual points recorded in the match.

The T-bar signifies that the points are effectively counted out and should not be considered in the context of the final score. This is particularly important in a deciding set, where every point can dramatically influence the outcome of the match.

The other options do not serve this specific purpose. An arrow might be used to indicate direction or movement, a circle could denote something important or highlight a specific point, and an hourglass does not have a direct relevance to scoring in volleyball. Thus, the T-bar is distinctively appropriate for this scenario.