1.Spermatogonia-spermatid-spermatocyte-sperms
2.Spermatocyte-spermatogonia-spermatid-sperms
3.Spermatogonia-spermatocyte-spermatid-sperms
4.Spermatid-spermatocyte-spermatogonia-sperms
Answer:3