The correct option is A Spermatogonia, Spermatocytes, Spermatids
The process of production of sperm from spermatogonia is term as spermatogenesis. Spermatogonia undergoes meiosis to form spermatocyte which later produce spermatids. Spermatids are then transformed into spermatozoa (sperms). Thus, the correct order is - spermatogonia, spermatocyte, spermatids, spermatozoa. Therefore, the correct option is a.