Gajendra is a popular variety of:

✅Explanation:
-Elephant Foot Yam (d) is the correct answer. Gajendra is a well-known cultivar (cultivated variety) of Elephant Foot Yam, also known as Konjac. This root vegetable is known for its large, bulbous shape resembling an elephant's foot.

🛑 Related Terminology:
-Cultivar: A cultivated variety of a plant that has been selected for desirable characteristics.
-Tuber: A thickened underground stem that stores nutrients.
-Corm: A swollen underground stem that grows vertically and has buds on top.