What should happen if the wrong team delivers the jack at the start of the end?

When the wrong team delivers the jack at the start of the end, the proper action is to restart the end with the correct team delivering the jack. This is crucial for maintaining the integrity of the game, as the rules dictate that the team designated to start the end must be the one to place the jack. By requiring the team that was meant to deliver the jack to restart, it ensures that all play is conducted fairly and according to the established rules of play.

The other choices do not align with the rules governing the situation in bowls. Allowing the end to continue or declaring a foul wouldn't address the error in team sequence. Moreover, awarding an automatic win to one team does not correspond to the regulations and would be an inappropriate sanction for this kind of mistake. Restating the end with the correct team is the only action that ensures fairness and adherence to the game's rules.