Assertion : If the activation energy of a reaction is zero , temperature will have no effect on the rate constant .
Reason : Lower the activation energy , faster is the reaction .
A. If both assertion and reason are true and the reason is the correct explanation of the assertion .
B. If both assertion and reason are true but reason is not the correct explanation of the assertion
C. If assertion is true but reason is false .
D. If the assertion and reason both are false .
