Which of the following best describes the difference between estimated and actual costs in project management?

Estimated costs are the costs incurred during the project, while actual costs are the total budget allocated to the project.

Estimated costs are the costs covered by the reserve fund, while actual costs are the total budget allocated to the project.

Estimated costs are the expected costs of completing a project, while actual costs are the costs that were incurred during the project.

Estimated costs are the total budget allocated to the project, while actual costs are the costs covered by the reserve fund.