The ratio of 5th day BOD of the industry in kg/day and BOD contributed by each person in kg/day is termed as _______.

The ratio of 5th day BOD of the industry in kg/day and BOD contributed

1.	The ratio of 5th day BOD of the industry in kg/day and BOD contributed by each person in kg/day is termed as _______.
A.	relative stability
B.	population equivalent
C.	total organic carbon
D.	oxygen equivalent
Answer» C. total organic carbon