When blood osmolality increases, is released by the posterior pituitary and acts on the kidney to increase water retention. rev: 12_09_2013_qc_41897 antidiuretic hormone renin insulin angiotensin ii?

Answer- Antidiuretic Hormone (ADH)

When there is an increase in blood osmolality, the increased blood osmolality stimulates the hypothalamus, which in turn stimulates the posterior pituitary gland to secrete Antidiuretic Hormone (ADH). The secreted ADH then acts on the kidney to increase water retention. 

answer; the correct answer is (beta)

answer; i believe the correct answer is (a)0