Answer:
c. Either anaphase I or II of meiosis
Explanation:
During anaphase I homologous chromosomes separate, and they end up at opposite poles of the cell each having 2 chromatids, thus producing two daughter cells each with half the original chromosome number.
The two daughter cells resulting from meiosis I enter meiosis II, and during anaphase II the chromatids separate to opposite poles of the cells, producing a total of four daughter cells with half the original chromosome number and only one chromatid per chromosome.