Place the following structures of the male reproductive system in order of how immature sperm passes through and out of the testes?
1) Epididymis, Vas deferens, Urethra
2) Urethra, Vas deferens, Epididymis
3) Vas deferens, Epididymis, Urethra
4) Epididymis, Urethra, Vas deferens