What is the main purpose of a subsidiary motion?

The main purpose of a subsidiary motion is to modify or affect the main motion. This function is crucial in parliamentary procedure as it allows members to propose alterations or changes to the main motion being discussed. These subsidiary motions enable a more organized and structured discussion, ensuring that participants can refine, amend, or adjust the main motion to better fit the group's intentions or needs.

Subsidiary motions can also help clarify points within the main motion or provide additional context that may help the assembly reach a decision. This enhances the deliberative process by ensuring that all viewpoints can be considered before a decision is made on the main motion.

Other options, such as discussing an unrelated topic or closing debate, do not align with the essential function of subsidiary motions. Similarly, adjourning a meeting serves a different purpose and is not related to modifying the main motion.