Are passenger cars required to have a left rear-view mirror?
A)Only if the interior rear-view mirror does not allow a complete view of the road.
B)No, it is optional.
C)Yes, it is mandatory.Correct
# Explanation: Left Rear-View Mirror
Yes, passenger cars are required to have a left rear-view mirror according to traffic regulations. This mirror is an essential safety element that allows the driver to have a complete view of the rear and left lateral area of the vehicle, preventing blind spots. Its presence is mandatory regardless of whether the interior mirror works correctly.