Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason RAssertion A: Polluted rivers with very high values of Biological Oxygen Demand (BOD) may produce a foul smellReason R: Anaerobic bacteria produce sulfur dioxide and oxides of nitrogenIn light of the above statements, choose the most appropriate answer from the options given below

• 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. A is correct but R is not correct
• D. A is not correct but R is correct