The correct option is C Adrenal
Aldosterone of adrenal cortex maintains salt equilibrium by stimulation of renal absorption of sodium ions and water thereby increasing the blood volume and excretion of potassium. Anterior pituitary secretes tropic hormones to regulate secretions of other endocrine glands. Pancreatic hormones regulate the blood sugar level while thyroid hormones regulate metabolic rate. Thus, the correct answer is C.