Consider the following : 1. Camphor 2. Chicory 3. Vanilla Which of the above is/are plant product(s) ?

Camphor is a natural plant-derived substance obtained from the camphor tree (Cinnamomum camphora) and is listed as a plant source for the drug camphor and as a raw material for perfumery and oils [2]. Chicory (Cichorium intybus) is an edible plant whose roasted roots are widely used as a coffee substitute and food ingredient, so it is a plant product. Vanilla comes from the pods (beans) of the vanilla orchid (Vanilla planifolia) and is the classic plant-derived flavoring agent. All three — camphor, chicory, and vanilla — are therefore products obtained from plants, making option 4 (1, 2 and 3) correct.

Sources

1. [1] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 12: Major Crops and Cropping Patterns in India > Table III Pharmaceutical Plants, Drugs and Use > p. 89
2. [2] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 5: Natural Vegetation and National Parks > 5. Oils > p. 26