What is the main role of the Food and Drug Administration (FDA)?

The primary role of the Food and Drug Administration (FDA) is to regulate food safety, ensuring that food products are safe for consumption, sanitary, and properly labeled. This includes overseeing the manufacturing, processing, and distribution of food to protect public health. The FDA establishes guidelines and sets standards to ensure that food products meet certain safety and quality standards, preventing foodborne illnesses and ensuring that consumers receive accurate information about the contents of food products.

The other options do not accurately reflect the core responsibilities of the FDA. While taste and visual appeal are important for consumers, they are not the FDA's focus; rather, the agency prioritizes health and safety over aesthetics. Promoting agricultural products may involve other agencies or organizations, but it is not the FDA's primary function. Additionally, the FDA does not engage in controlling pricing in the food market, as its mandate is centered on regulatory functions rather than economic regulation.