Final answer:
Zoning is a form of land-use regulation that controls the use and development of real estate within a municipality.
Step-by-step explanation:
Zoning is a form of land-use regulation that controls the use and development of real estate within a municipality. It involves specifying how land within the municipality can be used, including restrictions on building specifications, building codes, and deed restrictions. The police-power controls that are used to regulate land use and development typically include city plan specifications, building codes, and deed restrictions. Therefore, the answer to the question is A. City plan specifications.