The correct option is C Fleming
Mitosis is a five-step process by which a cell separates replicated chromosomes before cytokinesis creates two identical daughter cells from one original cell. The five steps of mitosis are prophase, prometaphase, metaphase, anaphase, telophase. Flemming investigated the process of cell division and the distribution of chromosomes to the daughter nuclei, a process he called as mitosis from the Greek word for thread.