B. testes - the Sertoli cells of the Testes are where sperm mature and the Leydig cells of the Testes generate Testosterone The vas deferens is a delivery tube connecting the testes to the prostate/urethra for export, and the penis is only a conduit to deliver the sperm inside semen during coitus. The epididymis only stores mature sperm in preparation for the next ejaculation.
There are so many benefits of being positive. It lowers heart rate and blood pressure, brings a level of peace, and it can actually help you create what you want in your life.