Assertion : Potassium ferrocyanide and potassium ferricyanide both are diamagnetic.
Reason : Both have unpaired election.
(A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
(B) If both a ssertion 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.
(E) If the assertion is false but reason is true.