What does the FDA primarily regulate among the following?

The FDA primarily regulates the labeling and safety of food, which encompasses a wide array of responsibilities aimed at protecting public health. This includes ensuring that food products are safe for consumption, properly labeled, and compliant with established standards. The agency evaluates the ingredients used in food products, assesses potential health risks, and enforces regulations that dictate how food must be labeled with regards to nutritional information and ingredient transparency.

The focus on food safety involves oversight of production practices, handling, and packaging to minimize risks of contamination and foodborne illnesses. Proper labeling is crucial not only for consumer awareness but also for informed food choices, allowing consumers to understand what they are eating and any potential allergens present in food products.

While the other options touch upon aspects related to food and beverages, they fall under jurisdictional purviews that are not primarily governed by the FDA. For instance, alcoholic beverages are mainly regulated by the Alcohol and Tobacco Tax and Trade Bureau (TTB), and the USDA governs the labeling of meat. The transportation of food products may involve various agencies, but the FDA's principal focus remains on the safety and labeling of food itself. This makes option C the core responsibility of the FDA among the provided choices.