If B3 bats in place of B1 before the next pitch, who is the next correct batter?

In this scenario, understanding the batting order is crucial. When B3 bats in place of B1, the batting order shifts accordingly. B1, initially leading off, has been replaced by B3, making B3 the player who is legally at bat.

After B3 bats, the next batter in the lineup follows the established order. Since B1 is no longer in the game due to B3 taking their place, the subsequent correct batter is B4. This is because the batting sequence continues without skipping any players, hence the next batter after the substitute (B3) must be the next in line, which is B4.

This understanding clarifies why the choice indicating B4 is the next correct batter aligns with the rules of the game concerning batting order and substitutions, ensuring that the order remains continuous and orderly.