which of these actions is most likely to be permitted in dealing with a person with limited english proficiency?

The action most likely to be permitted in dealing with a person with limited English proficiency is allowing the individual to bring their own interpreter even when the interpreter's competency is unclear. This respects the individual's autonomy while providing a way to communicate. Other options, such as requiring the individual to supply their own interpreter, using staff with limited language training, or allowing a child to interpret in emergencies, are generally discouraged or not permitted because they may hinder effective communication or raise ethical concerns. This approach is aligned with guidance to ensure effective communication and meaningful access for persons with limited English skills, while also balancing practical considerations of interpreter competence and the individual's preferences.