What is the government required to offer Frank in exchange for condemning his property for a public project?

The correct response is that the government is required to offer just compensation to Frank in exchange for condemning his property for a public project. This principle is rooted in the Fifth Amendment of the U.S. Constitution, which states that private property cannot be taken for public use without just compensation.

Just compensation means that Frank should be financially compensated at fair market value for his property at the time of the taking. This ensures that he is not unfairly burdened by the loss of his property and that he is able to purchase a comparable property or replace the lost asset.

The other options do not align with the protections offered by the Constitution. The notion that nothing is owed because it's for public good overlooks the constitutional requirement for compensation. The idea that the government would simply give whatever Frank asks for undermines the objective evaluation of fair market value. Lastly, stating that the government can determine what is reasonable does not adhere to the standard of just compensation, as it implies a vagueness that could lead to inequity. Therefore, just compensation is explicitly mandated, ensuring a fair process for property owners during eminent domain proceedings.