The correct option is A Spermatids
Spermiogenesis/spermateleosis
is formation of spermatozoa from spermatids. It is the last stage of
spermatogenesis. It occurs in testis and begins at puberty. The spermatids are transformed
into spermatozoa by the process of metamorphosis. Spermatozoa are also known as
sperms. After spermiogenesis, the sperm heads become embedded in the Sertoli
cells, and are finally released from the seminiferous tubules by the process
called spermiation.