The kidneys play a major role in the urinary system. Which of these is NOT a function of the kidneys? A)
The kidneys help regulate overall fluid balance.

B)
The kidneys make and store urine until it can be expelled from the bladder.

C)
The kidneys create hormones that help produce red blood cells, promote
bone health, and regulate blood pressure.

D)
The kidneys filter out a variety of water-soluble waste products and
environmental toxins into the urine for excretion.