Assertion: In a pressure cooker the water is about to be boiled. The cooker is then removed from the stove. Now on removing the lid of the pressure cooker, the water boils again.Reason: The impurities in water bring down its boiling point.

• A. Both assertion and reason are true and the reason is the correct explanation of the assertion
• B. Both assertion and reason are true but the reason is not a correct explanation of the assertion
• C. Assertion is true but the reason is false
• D. Both assertion and reason are false