Assertion : Oxytocin is also known as Antidiuretic hormone ( ADH ) . Reason : Oxytocin can cause an increase in the renal reabsorption of water.

Step-by-step solution

(d): It is not oxytocin, but the hormone vasopressin (also known as antidiuretic hormone, ADH ) because it reduces the volume of urine by increasing the reabsorption of water from the urine in the distal convoluted tubules, collecting tubules and collecting ducts in the kidney. It does so by rendering the walls of those tubules permeable to water. Failure of secretion of vasopressin leads to a reduced renal reabsorption of water and a consequent elimination of a large volume of very dilute (hypotonic) urine. Oxytoc