Which diagram correctly displays the order of events during egg formation?
primary oocyte ® secondary oocyte ® meiosis I ® meiosis II ® ovum
ovum ® meiosis I ® primary oocyte ® meiosis II ® secondary oocyte
primary oocyte ® meiosis I ® secondary oocyte ® meiosis II ® ovum
primary oocyte ® meiosis I ® ovum ® meiosis II ® secondary oocyte