The correct answer is "to produce and store sperm". The male reproductive system is responsible for producing and storing sperm, which are the reproductive cells needed for fertilization. Sperm are produced in the testes, specifically in the seminiferous tubules, through a process called spermatogenesis. Once produced, the sperm are then stored in the epididymis, a coiled tube located on the outside of each testicle, until they are ready to be ejaculated during sexual intercourse.
The function of the male reproductive system is to produce and store sperm.