Read the following statements and choose the correct option.Statement A : Underground stems of potato,ginger,turmeric,zamikand,and Colocasia are modified to store food in them.Statement B : They also act as organs of perennation to tide our conditions unfavourable for growth.

The stem may not always be typically like what they are expected to be. They are modified to perform different functions. Underground stems of potato, ginger, turmeric, zaminkand, Colocasia are modified to store food in them. They also act as organs of perennation to tide over conditions unfavourable for growth.