What happens when interference occurs during a pitch with a runner on second base?

When interference occurs during a pitch with a runner on second base, the correct understanding is that all runners return to their original bases if the batter is called out as a result of the interference. In this context, interference by a batter typically means that the batter has made contact with the ball in a way that disrupts the play or impedes the defense, thus affecting the outcome.

If a batter is declared out due to interference, it automatically resets the situation for the base runners. The purpose of this rule is to maintain fairness and prevent the offensive team from gaining an unfair advantage. Returning all runners to their original bases helps to negate any possible advancement that could have been gained through the interference.

Regarding other options, the scenario described does not immediately result in the ball being dead for all runners to advance, nor do runners have the ability to remain on their base while not being able to advance; those situations would apply under different circumstances where the nature of the interference might differ. The rule is about resetting the play, hence the choice reflecting that all runners return to their original bases when the batter is out is the most aligned with the governing rules of play.