59. How do ADH and RAAS work together in maintaining osmoregulatory homeostasis?
(A) ADH monitors osmolarity of the blood and RAAS regulates blood volume.
(B) ADH monitors appropriate osmolarity by reabsorption of water, and RAAS maintains osmolarityby stimulating Na+ reabsorption.
(C)ADH an RAAS work antagonistically； ADH stimulates water reabsorption during dehydrationand RAAS removal of water when it is in excess in body fluids.
(D) Both stimulate the adrenal gland to secrete aldosterone which increases both blood volume andpressure.
(E)Only when they are together in the receptor sites of proximal tubule cells, will reabsorption ofessential nutrients back into the blood take place.