Which of the following options correctly describes the behavior of a tetrad during anaphase 1 of meiosis? a) it splits into four chromosomes, which distribute in sister-chromosome pairs to the two poles of the dividing cell. b) it goes intact to one pole of the dividing cell. c) it splits into two pairs of sister chromatid, and one pair goes to each pole of the dividing cell. d) it splits into four chromosomes, which distribute in random pairs to the two poles of the dividing cell. e) it splits into two pairs of homologous, nonsister chromatids, and one pair goes to each pole of the dividing.