Choose the Statement That Best Describes the Difference Between "Economic

Choose the statement that best describes the difference between "economic rent" and other factor payments.

A) Economic rent is unearned income of the factor whereas other payments are earned.
B) Economic rent is the sum of all factor payments.
C) There is no difference between economic rent and other factor payments.
D) Economic rent is not a cost to the firm but other payments are.
E) A reduction in economic rent will not reduce the availability of the factor whereas reducing other payments of factors will reduce their availability.