Assertion: Two rational numbers with different numerators can never be equal. Reason: A rational number is said to be in standard form if q is positive and p and q have no common factor other than 1. 1. Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A). 2. Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A). 3. Assertion (A) is true but Reason (R) is false. 4. Assertion (A) is false but Reason (R) is true.