A project manager prepares a ____________ to better understand cash flow needs.

The choice of a preliminary cash flow schedule as the correct answer highlights the importance of forecasting and planning for cash flow needs in a project management context. A preliminary cash flow schedule is specifically designed to outline anticipated cash inflows and outflows over a specific period, enabling the project manager to identify when funds will be required and when they are expected to be received. This proactive approach is critical for ensuring that the project remains financially viable and can cover expenses as they arise.

By having a clear understanding of cash flow needs, the project manager can make informed decisions regarding budgeting, resource allocation, and project timelines. This tool aids in anticipating potential cash shortfalls and allows for adjustments to be made in project execution or funding strategies. In contrast, a budget overview typically provides a broader financial picture rather than focusing specifically on the timing of cash movement, making it less effective for detailed cash flow management. A tracking schedule usually refers to monitoring project progress rather than financial aspects. Lastly, a financial report, while useful for providing insights into overall financial performance, does not serve the specific purpose of cash flow projection and management that a preliminary cash flow schedule does.