【单选题】A 25-year-old woman presents with chronic fatigue. A series of blood tests is ordered, and the results suggest that her red blood cell count is low because of iron-deficiency anemia. Such a deficiency...
A.
Her decrease in Fe – S centers is impairing the transfer of electrons in the ETC.
B.
She is not producing enough H2O in the electron-transport chain,leading to dehydration, which has resulted in fatigue.