Which principle should the nurse teach the parent concerning administering liquid iron preparations to the child with iron-deficiency anemia?

A. Allow the preparation to mix with saliva and bathe the teeth before swallowing: Iron can stain teeth; using a straw or dropper and rinsing the mouth after administration is recommended. B. Administer in the bottle of formula: Mixing with milk/formula reduces absorption due to calcium content. C. Warm the medication before administering: There’s no benefit to warming, and it could affect stability. D. Administer between meals: Iron is best absorbed on an empty stomach and in an acidic environment, so administering between meals enhances absorption.