Which is the correct sequenc e in spermatogenesis?
A. Spermatogonia `rarr` Spermatids `rarr` Secondary spermatocytes `rarr` Primary spermatocytes `rarr` Sperms
B. Spermatogonia `rarr` Spermatids `rarr` Primary spermatocytes `rarr` Secondary spermatocytes `rarr` Sperms
C. Primary spermatocytes `rarr` Secondary spermatocytes `rarr` spermatids `rarr` Spermatogonia `rarr` Sperms
D. Spermatogonia `rarr` primary spermatocytes `rarr` Secondary spermatocytes `rarr` Spermatids `rarr` Spers.