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The correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by_______________?

The correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by_______________?

A. TOD>BOD>COD
B. TOD>COD>BOD(Correct)
C. BOD>COD>TOD
D. COD>BOD>TOD