The correct option is D Coacervates
It is suggested that the large organic molecules formed abiotically in the primitive earth oceans came together spontaneously and due to intermolecular attraction, formed large colloidal aggregates, called as coacervates. An envelope of water molecules formed around each such aggregate due to the hydrophilic nature of some of these compounds. A membrane of fatty acids protected and enclosed these molecules, increasing the chances of chemical reactions. Gradually, breakdown and building up reactions started for which the energy required was provided by the breakdown reactions. The coacervates selectively absorbed proteins and other materials from the ocean resulting in their active growth. The coacervates not only started growing rapidly but also started multiplying.