Anne was observing a cell under a microscope which was undergoing binary fission. Which type of cell was Anne observing? Select one of the options below as your answer. A. Eukaryotic animal cell B. Eukaryotic plant cell C. Prokaryotic cell.

I think the correct answer from the choices listed above is option C. Anne was observing a prokaryotic cell. All eukaryotic cell undergo mitosis while prokaryotic cells undergo binary fission so it should be the latter. Hope this answers the question.