Put these terms in order from where sperm is created to the last body part it leaves through.
a) Seminiferous tubules, epididymis, vas deferens, urethra.
b) Vas deferens, epididymis, urethra, seminiferous tubules.
c) Urethra, seminiferous tubules, epididymis, vas deferens.
d) Seminiferous tubules, urethra, vas deferens, epididymis.