Consider the following -
(A) Paddy is grown in the Ganga-Brahmaputra plains.
(R) The amount of rainfall is high in the Ganga-Brahmaputra plains.
1
Both A and R are true, R is the correct explanation of A.
2
Both A and R are true, but R is not a correct explanation of A.
3
A is true, R is false.
4
A and R are both false.