What is the correct procedure when B7 bats in place of B5 and a violation is discovered?

In this scenario, the correct procedure dictates that B5 would step in to take B7's position immediately. This situation arises when a player bats out of order, which is considered a violation as per the baseball rules. When the error is discovered, the proper course of action is to rectify the batting order by reinstating the player who was supposed to bat—in this case, B5.

This reinstatement ensures that the game continues in accordance with the established rules and maintains fairness among the teams. It is crucial to address mistakes in the batting order quickly to uphold the integrity of the game.

Meanwhile, the other choices would not comply with the necessary corrective actions mandated by the rules. Allowing B7 to remain at bat or awarding B7 first base would enable the violation to stand, which is not permissible. Similarly, removing both B7 and B5 from the game does not address the violation in an appropriate manner and disregards the need to reinstate the correct batting order.