The correct option is C multinucleate condition in endosperm
During the development of endosperm in some angiosperms, nuclei divide repeatedly before cytokinesis sets in. In this, karyokinesis is not followed by cytokinesis. The endosperm formed like this is called nuclear endosperm. This results in multinucleate condition in endosperm. It is commonly called as liquid endosperm. Its function is to provide nourishment for the developing embryo.
Fertilization is the fusion of the haploid male and female gametes to give rise to a diploid zygote. The diploid zygote forms the embryo by repeated mitotic divisions.