Which of the Following Statements Are True of Spermatogenesis or Oogenesis

Which of the following statements are true of spermatogenesis or oogenesis (Select all that apply) ?

A) Spermatogenesis produces four haploid cells for each cell that undergoes meiosis.
B) Oogenesis is a cyclical process and spermatogenesis is a continuous process.
C) Both processes begin at puberty and end between the ages of 45 and 55.
D) Both processes depend on hormones from the gonads and the posterior pituitary gland.
E) Oogenesis produces one haploid cell and three diploid cells for each cell that undergoes meiosis.
F) Both the ovaries and testes contain stem cells.