Final answer:
Sperm are produced in the testes during spermatogenesis and mature in the epididymis, not the prostate gland or vas deferens.
Step-by-step explanation:
Sperm are produced in the testes within structures called seminiferous tubules. This process is known as spermatogenesis. Once formed, sperm mature and develop their tails in the epididymis. It's important to note that the prostate gland, while involved in the male reproductive system, does not produce sperm but contributes to the seminal fluid that is part of semen. Additionally, the vas deferens is the duct that carries sperm from the testes to the urethra, not where they mature. The prostate gland is not located in the testes, which is a false statement about the male reproductive system.