How does meiosis i differ from meiosis ii?

a) the sister chromatids separate during meiosis i, but not during meiosis ii.
b) the homologous chromosomes pair up during meiosis ii, but not during meiosis i.
c) two sex cells are produced as a result of meiosis ii, but not as a result of meiosis i.
d) chromosome number decreases by half as a result of meiosis i, but not as a result of meiosis ii.