What is considered a simultaneous violation during a free throw?

A simultaneous violation during a free throw occurs when players from both teams occupy their respective marked lane spaces in a way that conflicts with the rules governing free throw situations. In this context, each team is allowed to have a specific number of players in the marked lane spaces: offensive players on one side and defensive players on the other.

When both teams have players occupying their correct lane spaces but exceed the allowable number, it results in a violation because it disrupts the flow and fairness of the play. This simultaneous violation leads to the free throw being reattempted, as both teams are equally responsible for the infraction.

The other choices involve specific interactions with the lane spaces that do not constitute a simultaneous violation in the same sense. They either limit players to one side or suggest scenarios that do not lead to a direct conflict between both teams occupying their spaces. For instance, having offensive players solely in the first marked lane spaces or defensive players in the second does not reflect the simultaneous occupancy necessary for the violation.