(a) If both assertion and reason are true and the reason is the correct explanation of the asser...

(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.
(e) If assertion is false but reason is true.
Assertion : The speedometer of an automobile measure the average speed of the automobile.

Reason: Average velocity is equal to total displacement per total time taken.