Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Cotton is grown in alluvial soils.
Reason (R) : Alluvial soils are very fertile.
In the light of the above statements, choose the correct answer from the options given below : 

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true but (R) is NOT the correct explanation of (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true