What role does follicle stimulating hormone (FSH) play?

Follicle stimulating hormone (FSH) plays a crucial role in regulating various aspects of development and reproductive processes. In both females and males, FSH is essential for the development of gametes — the eggs in females and sperm in males.

In females, FSH stimulates the growth and maturation of ovarian follicles, which are critical for ovulation and preparing the reproductive system for potential fertilization. In males, FSH acts on Sertoli cells in the testes, promoting spermatogenesis, which is the production and maturation of sperm.

Overall, FSH is key in the endocrine and reproductive systems, facilitating the normal functioning of processes related to growth, development, and reproduction in the body, making choice B the most accurate answer.