The correct option is A Gonadotropic hormone
The secretion of pituitary gonadotrophic hormones is stimulated by gonadotropin hormone-releasing hormone (GnRH) from the hypothalamus and modulated by testicular hormones. At the onset of puberty, the pituitary gland secretes GnRH, or gonadotropin-releasing hormone. In response, the hypothalamus release follicle stimulating hormone (FSH) and luteinizing hormone (LH) into the male system. LH enters the testes, stimulating the Leydig cells to release testosterone. Testosterone hormone is responsible for the secondary sexual characteristics like deepening of the voice, the growth of facial, axillary, and pubic hair, and the beginnings of the sex drive.