Which of the following statements best characterizes farm subsidies in the United States? A. Farm subsidies have supported mainly large farms and have ensured a consistent food supply for consumers. B. Farm subsidies have supported mainly large farms, but have reduced the supply of food to consumers. C. Farm subsidies have supported mainly small farms and have ensured a wide variety of food for consumers. D. Farm subsidies have supported mainly small farms, but only those that grow a few kinds of food. Please select the best answer from the choices provided.