What typically constitutes a project budget?

A project budget is a comprehensive financial plan that outlines all expected costs associated with the project's execution. The correct choice highlights that the budget includes costs related to resources, materials, and overhead. This encompasses a variety of expenditures such as labor costs, materials needed for production, and any operational expenses that support the project activities.

Understanding that the project budget goes beyond just labor costs is crucial; it reflects the full scope of what is required to complete the project efficiently. Each component plays a significant role in ensuring that the project can be executed without financial oversights that could jeopardize its success.

The other options do not capture the full essence of a project budget. Focusing solely on labor and overtime ignores other critical financial elements such as materials and overhead that are essential to project completion. Estimating costs for future projects does not pertain to the current project's budget, as it deals with anticipatory figures rather than actual expenditures. Lastly, while profits are important, they do not form part of the budget for a project in the context of expenditure; instead, they are the outcomes of successfully managing the budget and project costs.