The correct option is C anaphase - II
The division or splitting of centromere leads to separation of sister chromatids of the chromosomes. This occurs during anaphase-II.
During anaphase-I, there is separation of pair of homologous chromosomes and they move to opposite poles of the cell.
During interphase, cell makes preparations to divide.
During metaphase, the chromosomes align in the cente on the equatorial plate.