A 30-year-old woman is breastfeeding her infant. During suckling, which hormonal response is expected in the woman? A) Increased secretion of ADH from the supraoptic nuclei B) Increased secretion of ADH from the paraventricular nuclei C) Increased secretion of oxytocin from the paraventricular nuclei D) Decreased secretion of neurophysin E) Increased plasma levels of both oxytocin and ADH