Which sequence is correct for oogenesis?

• A
  Oogonia $\rightarrow$ secondary oocyte $\rightarrow$ ovum
• B
  Oogonia $\rightarrow$ primary oocyte $\rightarrow$ ovum
• C
  Ovum $\rightarrow$ oogonia $\rightarrow$ secondary oocyte $\rightarrow$ primary oocyte
• D
  Oogonia $\rightarrow$ primary oocyte $\rightarrow$ secondary oocyte $\rightarrow$ ovum