I’m sorry if I get it wrong but I think it’s C for the first one and B for the second one
I think the assessment finding helped to differentiate the diagnosis is Urine osmolarity
Polydipsia and polyuria are signs of diabetes insipidus. When a water deprivation test is performed, urine osmolarity is increased dramatically from 100 to 600 mOsm/kg in clients with central diabetes insipidus,
The answer is D MARINE HATCHING