Among the given options, the correct answer is Option 4: 1, 2, and 3. Camphor, chicory, and vanilla are all plant products. Let`s examine each of them in detail:

1. Camphor: Camphor is a waxy, flammable substance derived from the wood of the camphor tree (Cinnamomum camphora) or synthesized from oil of turpentine. The camphor tree is native to Asia and is widely cultivated for its aromatic properties. The extracted camphor is used in various applications, including medicine, as an insect repellent, and for religious or ceremonial purposes.

2. Chicory: Chicory (Cichorium intybus) is a flowering plant that belongs to the daisy family. It is cultivated for its leaves, roots, and buds. The root of chicory is roasted and ground to make a coffee substitute or additive known as chicory coffee. The leaves of chicory are often used in salads and culinary preparations. It is also known for its medicinal properties, including its use as a digestive aid and a mild laxative.

3. Vanilla: Vanilla is a flavoring derived from the beans of the vanilla orchid (genus Vanilla). The most widely used and commercially important species is Vanilla planifolia. The beans, often referred to as vanilla pods, are obtained from the orchid`s fruits. They undergo a complex curing and drying process to develop the characteristic flavor and aroma. Vanilla is used extensively in cooking and baking to add a sweet, floral, and slightly woody taste.

Therefore, all three options mentioned (camphor, chicory, and vanilla) are derived from plants, making Option 4 the correct answer.