If a doctor wanted to be sure that a patient's urinary system is working properly, what would be the BEST indicators to investigate?
A.
the balance of salts and amount of urine produced
B.
the amount of sugars in the blood
C.
the amount of nutrients absorbed into the bloodstream
D.
the body's ability to digest carbohydrates and proteins
Please select the best answer from the choices provided.
A
B
C
D