The correct answer for the above question is B, It prompts the kidneys to reabsorb more water into the blood stream to dilute the salts. When there is less water in the body, the pituitary gland releases more ADH to reabsorb more water in the bloodstream so the urine will be concentrated. On the other hand, when there is more water in the body, less ADH will be released to reabsorb less water in the blood, thus resulting to dilute urine.