Which motion can be ordered by just one member's demand?

The option regarding calling for a division of the assembly is correct because it is a motion that can be initiated simply by a single member's demand. In parliamentary procedure, a division of the assembly is used when a member believes that a vote should be taken by a more precise method, such as a standing vote or a roll call vote, rather than a voice vote. When a member calls for a division, this request must be honored immediately, as it reflects the desire of that member to ensure clarity and accuracy in the results of the vote.

In contrast, the other motions require different levels of support or formalities. For instance, a motion to amend generally must be formally proposed and seconded, and it involves more discussion and deliberation. The motion to adjourn also typically requires the agreement of a majority or a second, as it impacts the continuation of the meeting. Lastly, a motion to table likewise needs to be made and seconded, as it involves suspending further consideration of a matter for a period of time. Therefore, the unique nature of calling for a division of the assembly, needing only one member's request to bring it forward, distinguishes it from the other options listed.