A production quota is​ _______.
A. fair by the​ rules-view of fairness because it is determined by the​ government, which is elected by majority vote
B. unfair by the​ results-view of fairness because consumers who are richer than farmers gain
C. fair by the​ results-view of fairness because farmers are producing the maximum amount they are willing to produce
D. unfair by the​ rules-view of fairness because it blocks voluntary exchange