What must a driver do at a red traffic light between midnight and 5 am?

At a red traffic light between midnight and 5 a.m., a driver must come to a complete stop before proceeding with caution. This is in line with the provisions that allow for some flexibility during low-traffic hours, ensuring the safety of the driver and others on the road.

Stopping completely allows the driver to assess the intersection and ensure that it is clear of any oncoming traffic or pedestrians before proceeding. This regulation is particularly important during late-night hours when visibility may be reduced and fewer vehicles may be on the road, thus necessitating extra caution.

The other choices imply either ignoring the traffic light or failing to stop, which may lead to unsafe situations. Properly responding to the red light—even when the road appears clear—is critical for maintaining road safety and adhering to traffic laws.