The correct option is
C Gemmae
Bulbs, Corms and Rhizome are examples of vegetative propagules. Gemmae however are
budlike mass of undifferentiated tissue which serves as a means of vegetative reproduction among mosses and liverworts. The gemmae, often formed in structures called gemma cups, are usually dispersed from the parent plant by the splashing of raindrops, after which they develop into new individuals.