A compound contains a transition metal coordination complex. This coordination complex consists of one iron(III) ion with three C2O42- ions attached as ligands. Which formula below describes a compound that fits this description?
a) Fe(C2O4)3
b) Fe(C2O4)3](SO4)3
c) Ca3[Fe(C2O4)3]
d) K3[Fe(C2O4)3]
e) [Fe(C2O4)3]Cl3