32. In the hormonal control of the male reproductive system, what is the specific function of inhibin? (A) Inhibin provides negative feedback to the anterior pituitary to reduce FSH secretion. (B) Inhibin acts on the hypothalamus to increase the secretion of GnRH. (C) Inhibin triggers the thickening of the endometrium for potential implantation. (D) Inhibin stimulates the Leydig cells to produce more testosterone.