The correct answer is protozoa. Ā
Binary fission is a type of asexual reproduction. It is the most general kind of reproduction in prokaryotes, like bacteria. It also takes place in some kind of single-celled Eukaryotes, protozoa, like Paramecium and Amoeba. Ā
In protists, like protozoa, the binary fission is usually distinguished into types, like longitudinal or transverse, on the basis of the axis of cell separation.