The United States Food and Drug Administration requires manufacturers of processed foods to publish nutrition information on the packaging at a considerable cost to the firms. How does this requirement affect economic​ efficiency? A. It moves the market toward economic efficiency because the additional information represents a positive externality that the FDA is forcing firms to internalize. B. It moves the market toward economic efficiency by reducing the market failure caused by a lack of​ information, enabling consumers to make better informed decisions regarding nutrition. C. It moves the market away from economic efficiency because the additional cost of​ labeling, which is not accounted for in the market​ price, creates a market failure. D. It moves the market away from economic efficiency because the additional cost of labeling adds little value but raises the price of food above marginal cost.