The correct option is B Apomixis
Apomixis is the process of formation of seeds without fertilization. As there is the lack of fertilization or involvement of gametes, it is called as asexual reproduction. Whereas vivipary is the development of the embryo inside the mother womb. karyogamy is the fusion of nucleus. Syngamy also called fertilization is the process of fusion of male and female gametes. Thus, the correct answer is option B.