Concept:The production of mature male gametes (sperm) in the testes is a specialized process known as spermatogenesis.
Explanation:The testes contain germ cells that divide and mature to form male sex cells called spermatozoa.
This complete developmental sequence is specifically called spermatogenesis.
Gametogenesis is a general term covering the formation of both male and female gametes.
Implantation refers to the embedding of the embryo in the uterine wall.
Spermatozoa is the name given to the mature male gamete, not the process itself.
Thus, the process by which male gametes are produced in the testes is spermatogenesis.
Answer:C. Spermatogenesis