Which of the following is a correct sequence of cells in oogenesis?

Which of the following is a correct sequence of cells in oogenesis?
 
  a. oogonium  primary oocyte  secondary oocyte
  b. oogonium  secondary oocyte  primary oocyte
  c. primary oocyte  secondary oocyte  oogonium
  d. primary oocyte  oogonium  secondary oocyte
  e. secondary oocyte  primary oocyteoogonium

Question 2

The mitochondria present in the sperm provide
 
  a. energy for the movement of the flagellum.
  b. energy for the acrosome to penetrate the egg.
  c. energy for the maturation of the sperm.
  d. nutrients for the sperm.
  e. nutrients for the developing embryo.