Assertion(A): There is often a need for supplying essential minerals through fertilizers.
Reason(R): The deficiency of essential minerals may not affect the crop yield.
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.