For the proposed air port, the survey project provides A. Master plan B. Topographic plan C. Grading plan D. All the above

Master plan
Topographic plan
Grading plan
All the above

The correct answer is D. All the above.

A master plan is a comprehensive document that outlines the overall vision for a project. It includes a description of the project’s goals, objectives, and strategies, as well as a timeline and budget. A topographic plan is a map that shows the elevation of the land. It is used to identify areas that are suitable for construction and to determine the need for grading. A grading plan is a detailed map that shows the proposed changes to the elevation of the land. It is used to ensure that the airport is built on a stable foundation and that the drainage is adequate.

The survey project provides all of this information, which is essential for the successful construction of an airport.