What may limit admittance to a mass meeting?

In the context of mass meetings, limiting admittance based on the category of invited individuals is correct because it reflects the intention behind the meeting's purpose and the roles of those invited. For example, a mass meeting may specifically invite stakeholders, experts, or representatives from certain organizations, which inherently restricts attendance to those groups.

When a meeting is meant to address particular issues relevant to specific categories of people, such as professionals from a certain field or community members impacted by a local issue, it naturally follows that only those individuals would be granted access. This approach ensures that discussions remain focused and relevant to the attendees, enhancing the effectiveness of the meeting's agenda.

Other options such as prior registration and membership status can certainly regulate attendance but might not be as directly tied to the purpose of a mass meeting. Age restrictions may also apply in some contexts but are typically not a primary factor limiting admittance in a meeting setting tailored for adult engagement and discussion. Overall, targeting specific categories of invited individuals aligns directly with the meeting's objectives and desired outcomes.