Correct Answer - C
Spermatogonia are diploid cells on the inside wall of seminiferous tubules that multiply by mitotic edivisions, some of the spermatogonia called primary spermatocyte undergo meiosis-I to give rise to secodnary spermatocytes (haploid). Each secondary spermatocyte undergoes meiosis-II to give rise to two haploid spermatids which are transferred to spermatozoa by speriogenesis.