The four drug sources include which of the following sets?

• A. Plants, Animals, Minerals, Chemicals
• B. Plants, Fungi, Minerals, Metals
• C. Animals, Minerals, Chemicals, Plastics
• D. Plants, Animals, Bacteria, Drugs

Answer: (A)

Drug sources are usually taught as four main categories: plants, animals, minerals, and chemicals. This framing helps you recognize where a medicine comes from—plant-derived compounds, animal-derived substances like hormones, mineral-based substances, and drugs that are produced entirely through chemical synthesis. The other options mix in items that aren’t standard categories in this framework: fungi and bacteria are organisms and can produce drugs, but they aren’t treated as separate source categories here; plastics aren’t used as drug sources; and listing drugs as a source is circular. So the set that includes Plants, Animals, Minerals, and Chemicals matches the common classification.