Which motion is used to bring business before the assembly?

The motion used to bring business before the assembly is the main motion. This type of motion is essential in parliamentary procedure as it introduces a new topic or proposal for discussion and consideration by the members of the assembly. When someone makes a main motion, it signifies an intention to address a specific issue or action that the assembly should focus on.

This motion must be stated clearly and concisely, allowing other members to understand what is being proposed. Once a main motion is made, it opens the floor for debate, amendments, and ultimately a vote on the matter at hand.

The other choices do not serve the purpose of introducing business. Secondary motions, for instance, are used to modify or affect the main motion being discussed rather than to introduce new business. Privileged motions deal with urgent matters unrelated to the current business, while incidental motions arise from the business at hand and deal with procedural concerns. Therefore, the main motion stands out as the necessary tool for bringing any new business to the assembly.