A nurse is reinforcing teaching with a client has a new diagnosis of aplastic anemia. When discussing the pathology of this disease, which of the following instructions should the nurse include in the teaching?

A. Iron intake deficiency causes iron-deficiency anemia, not aplastic anemia. B. Aplastic anemia is characterized by the failure of the bone marrow to produce adequate numbers of red blood cells, white blood cells, and platelets, making decreased bone marrow production the key pathology. C. Increased RBC destruction occurs in hemolytic anemias, not aplastic anemia. D. Impaired liver function is not the direct cause of aplastic anemia.