Which Statement Made by a Nurse Demonstrates Understanding of the Secretory

Which statement made by a nurse demonstrates understanding of the secretory functions of the kidney?

A) "Clients with renal failure have higher hemoglobin levels because of constant secretion of erythropoietin."
B) "Kidneys create glucose from amino acids in case of excessive consumption of animal proteins."
C) "The juxtaglomerular apparatus secretes renin in response to high sodium levels in the blood."
D) "Clients with impaired renal function have disrupted calcium balance in the bloodstream due to inactive vitamin D."