The correct answer is A. The cytoplasm splits, forming two daughter cells.
Cytokinesis occurs after the process of mitosis and is the splitting of the one large cell into two separate daughter cells. Cytokinesis is the last step of the cell cycle, after which the cell reenters interphase and begins preparing for its next division. Cytokinesis occurs differently in different types of cells: typically by cleavage in animal cells but by a cell plate in plant cells.
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