Which processes allow the government to say no to particular uses of private property?

Regulatory taking is the correct choice because it refers to government actions that effectively limit or deny the use of private property without formally taking ownership of it. Under the Fifth Amendment, property owners are entitled to just compensation when the government takes property for public use. However, the government can impose regulations that restrict how land can be used, and if these restrictions significantly diminish the property's value or the owner's ability to use it, they may be considered a "taking" requiring compensation.

In such cases, the government is essentially saying no to certain uses of the property based on zoning laws, environmental regulations, or land-use policies. This is a nuanced balance between the government's need to regulate land for the public good and the rights of property owners.

The other processes mentioned each refer to different government powers or actions: Public restrictions pertain to general governmental limitations on property use without the nuance of compensation; Eminent domain involves taking ownership of property for public use, which does not apply to simply saying no to a property’s use; and Taxation impacts property ownership financially but does not directly relate to restrictions on land use.