Edible part of Ginger is

A. Corm

B. Rhizome

C. Bulb

D. Tuber

Option A - Corm: A corm, also known as a bulbo-tuber or bubotuber, is an underground swelling of the plant stem that acts as a storage organ, helping the plant survive harsh conditions like winter or summer heat and dryness. Plants like gladiolus, crocus, and autumn crocus grow from corms. However, the edible part of ginger is not a corm, so Option A is incorrect.

Option B - Rhizome: A rhizome, or creeping rootstalk, is a horizontal underground stem that produces new shoots and roots. It serves as a storage organ for carbohydrates and proteins, enabling plants to survive through adverse conditions. Rhizomes like ginger, turmeric, and lotus are commonly used in cooking, and the edible part of ginger is indeed a rhizome. Therefore, Option B is the correct answer.

Option C - Bulb: A bulb is a small stem surrounded by fleshy leaves or leaf bases that act as food storage during the plant's dormant phase. Examples of bulb plants include onions, garlic, and tulips. Since the edible part of ginger is not a bulb, Option C is incorrect.

Option D - Tuber: Tubers, like potatoes, are underground stems with buds (eyes) from which new plants can grow. Plants such as dahlias and caladiums also produce tubers. Since ginger's edible part is not a tuber, Option D is incorrect.

Final Answer: Option B - Rhizome is the correct answer.