The correct option is
C PistiaOffset is a modification of stem in which a lateral branch with short internode and each node bearing a rosette of leaves and a tuft of roots. This type of modification is found in aquatic plants such as
Pistia and
Eichhornia. The function of offset is to propagate the plant species by propagating to a new niche.
So, the correct answer is 'Option C- Pistia'.