The correct answer is option (4) as • Cholecystokinin (CCK) acts on both gall bladder and pancreas and stimulates the secretion of bile juice and pancreatic enzymes respectively. • GIP inhibits gastric secretion and motility. • Atrial Natriuretic Factor (ANF) is released from the atrial wall of our heart. • Anti-diuretic hormone (ADH) acts mainly on the kidney and stimulates resorption of water and electrolytes by the distal tubules.