To answer this question, you need to have knowledge about the source of turmeric.
Option A) Stem - This option is incorrect because turmeric is not obtained from the stem of the plant.
Option B) Root - This option is correct because turmeric is obtained from the root of the plant. The root of the turmeric plant, known as the rhizome, is harvested, dried, and ground to produce the spice.
Option C) Fruit - This option is incorrect because turmeric is not obtained from the fruit of the plant.
Option D) Flower - This option is incorrect because turmeric is not obtained from the flower of the plant.
The correct answer is B) Root. This option is correct because turmeric is obtained from the root (rhizome) of the plant.