Assertion(A): Ortho and para nitrophenols are more acidic than phenol.
Reason(R): Phenoxide ion formed by ortho and para nitrophenols are more stable than pehenoxide ion formed by phenol.

1. Both assertion and reason are true, and reason is the correct explanation of the assertion.

2. Both assertion and reason are true, but reason is not the correct explanation of the assertion.

3. Assertion is true but reason is false.

4. Assertion is false but reason is true.