Iron Accumulation in the Human Body Has Been Implicated in Some

Iron accumulation in the human body has been implicated in some diseases. A chelating ligand sometimes is administered to treat these diseases. This treatment works because the ligand __________

A) oxidizes iron(II) to iron(III) .
B) reduces iron(III) to iron(II) .
C) precipitates the iron.
D) binds the iron to a protein.
E) forms a complex with the iron, which then is eliminated from the blood.