Final answer:
The FDA is the agency that sets standards for medication safety and quality to protect public health.
Step-by-step explanation:
The agency that sets the standards for the quality, purity, and safety of medications to protect the public health is the Food and Drug Administration (FDA). The FDA is a federal agency of the United States Department of Health and Human Services and is responsible for regulating and supervising various products, including pharmaceutical drugs, vaccines, medical devices, cosmetics, and more. The FDA enforces laws to ensure the purity, effectiveness, and truthful labeling of these products and plays a crucial role in safeguarding public health.