The most probable answer and the most likely to be the correct one would be D. Mitosis.
The cell cycle is divided into interphase and mitosis. In mitosis, what happens is the actual splitting of the cell into two, with identical genes from the parent cell. Although there is still some that undergo cytokinesis, usually the interphase part of the cell cycle and the mitosis part of the cell cycle is on the spotlight and the cytokinesis part of the cell cycle is left unattended.