Assertion: If `BOD` level of water in a reservoir is less than 5 ppm it is highly pollution. Reason: High biological oxygen dema

Assertion: If `BOD` level of water in a reservoir is less than 5 ppm it is highly pollution.
Reason: High biological oxygen demand means low activity of vacteria in water.
A. Both A and R are correct and R is the correct explanation of A.
B. Both A and R are correct but R is not the correct explanation of A.
C. Both A and R are not correct.
D. A is not correct but R is correct.

Assertion: If `BOD` level of water in a reservoir is less than 5 ppm it is highly pollution. Reason: High biological oxygen demand means low activity

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