What federal regulation governs the pricing of milk?

The Federal Milk Marketing Order is the correct answer because it establishes a system for regulating the price of milk at the federal level. This regulation is crucial for ensuring that dairy farmers receive fair compensation for their milk while also stabilizing the milk supply and prices for consumers. The Federal Milk Marketing Order sets minimum prices that processors must pay dairy farmers based on various factors, including location and the type of milk produced. It also addresses different classes of milk for various uses, such as fluid milk versus milk used for cheese or butter production, further ensuring a balanced market.

Other options represent various policies or acts related to agriculture but do not specifically govern the pricing structure for milk. The Milk Pricing Act could be seen as relevant, but it is not the primary regulation in effect. Similarly, Agricultural Marketing Policy and USDA Dairy Regulations encompass a wider scope that includes various dairy industry practices beyond just pricing. Thus, the Federal Milk Marketing Order is correctly recognized as the governing regulation for milk pricing in the United States.