What must the notice of hearing state if the persons to be notified are not specified?

The requirement for the notice of hearing to indicate that it must be given to all persons whose pecuniary interests are to be directly and immediately affected is crucial in ensuring that all relevant parties are appropriately informed of the proceedings. This provision protects the rights of individuals who may experience a financial impact as a result of the hearing's outcome.

By notifying all parties with a direct financial stake, the process ensures transparency and fairness, allowing those affected to participate or defend their interests effectively. This underlines the importance of due process in legal and administrative proceedings, ensuring that no stakeholder is overlooked, and everyone has the opportunity to present their case or express concerns relevant to the matter at hand.

The other choices, while important in their own contexts, do not specifically address the necessity of including all affected parties in the notice of hearing when their interests are not explicitly detailed. Thus, this highlights the principle of protecting and informing those whose financial welfare could be impacted by the decisions made in the hearing.