Assertion (A): The number obtained on rationalizing the denominator of 1/√5-2 is 2 + √5. Reason (R): If the product of two irrational numbers is rational, then each one is called the rationalizing factor of the other. 1. A is true, R is false 2. A is false, R is true 3. Both A and R are true 4. Both A and R are false.