Which of these choices is not one of the phases of mitosis?

The story behind the answer

Diplophase is not a stage of mitosis; the four classic phases are Prophase, Metaphase, Anaphase, and Telophase (remember “PMAT”). In Metaphase, chromosomes line up at the cell’s equator; in Anaphase, sister chromatids separate; in Telophase, new nuclei form around the chromosomes. “Diplophase” typically refers to the diploid phase of an organism’s life cycle (as opposed to the haploid