A teenage patient complains of frequently being tired and lethargic. The doctor notices the patient is pale and asks, "Do either of your parents have anemia?" Why is the doctor asking the patient this question?
A. Anemia refers to a disease of the white blood cells that is caused by inadequate nutrition.
B. Anemia refers to a disease of the red blood cells that is caused by inadequate nutrition.
C. Anemia refers to a disease of the red blood cells that can be inherited.
D. Anemia refers to a disease of the white blood cells that can be inherited.