Identify the Assertion(A) and Reason(R) and choose the correct option:
Assertion (A): The Ganga-Brahmaputra plain is densely populated.
Reason (R): The plain areas have fertile soil and flat land suitable for agriculture.
1
Both A and R are true, and R is the correct explanation of A.
2
Both A and R are true, but R is not the correct explanation of A.
3
A is true, but R is false.
4
A is false, but R is true.