The chelating ligand used in chelate therapy for removing excess of copper if present in toxic proportions in liver tissues (Wilson's disease) of human beings/animals is

Options

A. EDTA
B. ethane-1,2-diamine
C. oxalate ion
D. D-pencillamine

Answer

A

Explanation

Excess of copper in toxic proportion in plants/animals can be removed by chelating it with EDTA. The Cu form a complex and is excreted.