The Key Event That Starts Sexual Maturation at the Onset

Multiple Choice

The key event that starts sexual maturation at the onset of puberty is that

A) the ovaries and testes release gonadotropic hormones.
B) estradiol and testosterone are released from the hypothalamus.
C) the pituitary secretes gonadotropin-releasing hormones.
D) LH and FSH are released from the hypothalamus.
E) the adrenals release adrenaline.