Which of the Following Is Not a Result of the Theory

Multiple Choice

Which of the following is not a result of the theory of land rent?

A) Capital invested on any plot of land must yield the same return as capital invested on any other plot of land.
B) The difference between the costs of producing on any two pieces of land must equal the difference between their rents.
C) Marginal land earns no rent.
D) Productive land earns more rent than marginal land, which earns more rent than nonproductive land.