Among the following plants, the modified stems of the plants also act as organs of perennation?

A. Colocasia

B. Zaminkand

C. Turmeric

D. Ginger

All underground modified stems as seen in ginger and turmeric as rhizome, zaminkand and Colocasia as corm and in potato as stem tuber act as organs of perennation. Grapevine has no underground modified stems but has aerial modified stems as tendril which are not organs of perennation