The correct option is
D All of the above
Binary fission is a type of asexual mode of reproduction. It is most commonly found in prokaryotes and single-celled eukaryotes. In this method, after replicating the genome, the cell divides into two equal daughter cells. Amoeba is single-celled which reproduces asexually by the means of binary fission. In this process, a cell divides and two cells are formed. Paramecium is a member of ciliated protozoan which reproduces asexually like amoeba i.e. by binary fission. Binary fission is also seen in bacteria to reproduce asexually. In unicellular organisms, cell division is the only method to reproduce.
So, the correct answer is option D.