Which of the following statement is correct in relation to the endocrine system?
(a) Adenohypophysis is under direct neural regulation of the hypothalamus
(b) Organs in the body like gastrointestinal tract. heart, kidney and liver do not produce any hormones
(c) Non-nutrient chemicals produced by the body in trace amount that act as intercellular messenger are known as hormones
(d) Releasing and inhibitory hormones are produced by the pituitary gland