If the plate umpire does not inform the opposing team of a lineup change, is the change considered unofficial?

In NCAA softball, all lineup changes must be officially communicated to the opposing team by the plate umpire. If the plate umpire fails to inform the opposing team of a lineup change, it does not render the change unofficial; rather, the change is considered official, but it may lead to disputes or confusion during the game. This requirement ensures that both teams are aware of the players who are eligible to participate in the game, maintaining fair play. Therefore, the correct response indicates that the change is indeed considered official as long as it is properly recorded, regardless of whether the umpire communicated it to the opposing team.