Which management tool should be used by the division officer to maintain a current watch, quarter, and station bill?

The division notebook is the appropriate management tool for the division officer to maintain a current watch, quarter, and station bill. This tool serves as a centralized, organized repository for all relevant information specific to a division, including scheduling details for personnel and their assigned duties. By using the division notebook, a division officer can ensure that all real-time updates regarding watches, quarters, and station assignments are accurately documented and easily accessible.

Additionally, the notebook allows for efficient communication regarding any changes or adjustments that need to be made, thereby supporting operational readiness and ensuring compliance with command requirements. The other options, like a planning manual or operational log, may serve different functions within a naval setting, such as broader planning or record-keeping respectively, but none are specifically designed for the ongoing, detailed management of personnel assignments like the division notebook is.