**Core Concept**
Spermatogenesis is the process of sperm production in males, involving the transformation of immature cells called spermatogonia into mature spermatozoa. This process occurs in the seminiferous tubules of the testes, regulated by hormones and influenced by the hypothalamic-pituitary-gonadal axis.

**Why the Correct Answer is Right**
Spermatogenesis occurs in the seminiferous tubules of the testes, where spermatogonia differentiate into spermatocytes, which then undergo meiosis to produce spermatids. The spermatids mature into spermatozoa through a process of spermiogenesis. This process is influenced by the hormone testosterone, produced by the Leydig cells in the testes. The seminiferous tubules are also regulated by inhibin, a protein produced by Sertoli cells that inhibits the production of follicle-stimulating hormone (FSH) from the pituitary gland.

**Why Each Wrong Option is Incorrect**
**Option A:** This is not a correct location for spermatogenesis.
**Option B:** While the epididymis stores and transports sperm, it is not the site of spermatogenesis.
**Option C:** The prostate gland is an accessory sex gland involved in the production of seminal fluid, but it is not involved in spermatogenesis.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that spermatogenesis is a continuous process, taking approximately 64-72 days to produce mature spermatozoa. This process can be affected by various factors, including hormonal imbalances, radiation, and certain medications.

**Correct Answer: D. Seminiferous tubules of the testes**