Why Are Premature Infants More at Risk for Iron-Deficiency Anemia

Why are premature infants more at risk for iron-deficiency anemia than full-term infants?

A) They do not nurse or take formula as well as full-term infants, so their intake of iron is considerably less.
B) Their liver and spleen are smaller and functionally less well-developed than full-term infants.
C) Premature infants use up their stores of hemosiderin within 6 to 8 weeks compared to approximately 20 weeks for full-term infants.
D) The bone marrow production of iron is depressed and does not come up to the production level of full-term infants for several months.