Final answer:
The FDA defines natural food labels as products that do not contain added color, artificial flavors, or synthetic substances.
Step-by-step explanation:
The FDA's definition of a natural food label is a bit more complex than the options provided. According to the FDA, a product can be labeled as "natural" if it does not contain added color, artificial flavors, or synthetic substances. The FDA does not specifically require that the food be produced by farmers who emphasize the use of renewable sources, nor does it require that the food be raw, unprocessed, free of preservatives, or never frozen or heated.
Learn more about FDA's definition of natural food labels