Read the directions given below and answer the questions.
(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 the reason is not the correct explanation of the assertion.
(c) If the assertion is true, but the reason is false.
(d) If the assertion is false, but the reason is true.
Assertion : Insulators do not allow flow of current through them.
Reason : Insulators have no free charge carrier