Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Coral reefs are threatened because of release of sewage in ocean waters near them.
Reason R: Release of sewage in oceans tends to reduce the clarity of ocean water.
In the light of the above statements choose the most appropriate answer from the options given below:

Correct option is A

The correct answer is: Both A and R are correct but R is the correct explanation of A
Explanation:
Assertion A is correct: Coral reefs are indeed threatened by the release of sewage into ocean waters near them. Sewage can lead to increased nutrient levels in the water, promoting the growth of algae that can smother corals and deplete oxygen, harming the delicate reef ecosystems.
Reason R is also correct: The release of sewage can indeed reduce the clarity of ocean water, typically by increasing the amount of suspended particles and nutrients that can lead to turbidity and algal blooms.