Which of the Following Is Not a Goal of the "Parity

Which of the following is not a goal of the "parity concept" in U.S. agriculture policy?

A) Farm households' real income from a given amount of real output should stay the same from year to year.
B) The ratio of prices paid by farm households to prices received by farm households should remain about the same from year to year.
C) The average farm households' income should remain at par or equal to the average income of all households.
D) Changes in the prices paid by farm households should be matched by a proportionate increase in the prices received by farmers.