Section A: Choose the correct answer for the given question from the options.
 
Choose the correct choice as,
(a) If both the assertion and the reason are true and the reason is the correct explanation of assertion.

(b) If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.

(c) Assertion is true, but the reason is false.

(d) Assertion is false, but the reason is true.
 
Assertion: The Speedometer of a car or a motor-cycle measures its average speed.
Reason:
Average velocity is equal to total displacement divided by total time taken.