What is the difference between meiosis I and meiosis II?

Select one:
a. Meiosis II results in four haploid cells instead of two diploid cells.
b. Meiosis I has a prophase stage, but meiosis II does not.
c. Nuclear membranes form during meiosis II but not meiosis I.
d. Cytokinesis occurs during meiosis II but not meiosis I.