Which of the Following Statements Best Describes the Parity Concept

Multiple Choice

Which of the following statements best describes the parity concept?

A) The prices of farm commodities should vary inversely with changes in the prices-paid index for farmers.
B) Because of productivity increases, farmers are entitled to the same real income for a smaller volume of output.
C) The money incomes of farmers should always be the same, regardless of increases or decreases in the prices of the products they buy.
D) The production of a given real output entitles the producer to the same real income over time.