Assertion: Inter-row water harvesting is mainly followed in arid regions. Reason: Annual rainfall does not exceed 400-450 mm.

Question: Assertion: Inter-row water harvesting is mainly followed in arid regions. Reason: Annual rainfall does not exceed 400-450 mm.

Options:

Both are correct, A is the correct explanation of B.
Both are correct, A is not the correct explanation of B.
Only A is true.
Only B is true.