Final answer:
Herbal supplements and dietary supplements are not approved by the FDA like prescription and over-the-counter medications. They are regulated like foods and not subject to the stringent pre-market safety and efficiency standards that drugs must meet. Therefore, the correct option is c.
Step-by-step explanation:
The FDA (Food and Drug Administration) regulates over-the-counter medications and prescription medications to ensure they meet specific safety and efficacy standards, which includes a thorough review and approval process. On the other hand, herbal supplements and dietary supplements are not approved by the FDA in the same way; they are regulated more like foods than drugs. Supplement manufacturers are not required to prove the safety and efficacy of their products before they reach the market, and while they must meet manufacturing standards, these are not as rigorous as those for drugs. Claims made by supplement companies about the benefits of their products are not FDA-approved, and these products typically carry a disclaimer stating they are not intended to "diagnose, treat, cure, or prevent any disease."