Essential oils are extracted using distillation from plant materials such as seeds, bark, roots, wood, and/or resin.

• A. Essential Oils
• B. Fragrances
• C. Terpenes
• D. Resins

Answer: (A)

Essential oils are concentrated, volatile plant compounds obtained through distillation. Steam distillation captures the aromatic components from parts of the plant such as seeds, bark, roots, wood, and resin, producing a fragrant oil that carries the plant’s scent and often its therapeutic properties. This distinguishes essential oils from fragrances, which are scent materials that can be synthetic or blends and not necessarily direct distillates from plant material. Terpenes are the main chemical constituents found within many essential oils, but they are components, not the entire product. Resins are sticky plant exudates, not the essential oil itself. So the description aligns with essential oils as the product of distillation from those plant parts.