A physician who is providing care for a 71-year-old male client with a recent diagnosis of renal ...

A physician who is providing care for a 71-year-old male client with a recent diagnosis of renal failure and an acid-base imbalance is explaining some of the underlying etiology of the man's diagnoses to him and his family.
 
  Which of the following phenomena would most accurately underlie the teaching that the physician provides?
  A)
  The kidneys are integral to the reabsorption of hydrogen ions and maintenance of a low pH.
  B)
  Blood buffer systems and respiratory control can compensate for inadequate renal control of pH.
  C)
  The kidneys have the primary responsibility for eliminating excess hydrogen ions from the body.
  D)
  pH is kept at an optimal level through the renal secretion of bicarbonate ions in blood filtrate.