_________ is determined by measuring the dissolved oxygen used by microorganisms during the biochemical oxidation of organic matter in 5 days at 20‚àö√Ñ‚àö‚àÇC.$

_________ is determined by measuring the dissolved oxygen used by micr

1.	_________ is determined by measuring the dissolved oxygen used by microorganisms during the biochemical oxidation of organic matter in 5 days at 20‚àö√Ñ‚àö‚àÇC.$
A.	BOD5
B.	COD
C.	TOC
D.	ThOD
Answer» B. COD