In chess, the special pawn capture known as “en passant” can be executed under which condition?

1. AOnly after the opposing pawn moves two squares and one turn has passed
2. BWithin two subsequent moves after the pawn’s double-step advance
3. CImmediately on the next move after the opponent’s pawn moves two squares forwardCorrect answer
4. DOnly when the capturing pawn occupies a dark-colored square