Answer:
Option (B) i.e., flashing yellow and red lights is the correct option to the given question.
Step-by-step explanation:
Because there is very less traffic at the time of the late-night so, there is traffic police at that time that's why always or mostly flashing yellow or the red light at late night which indicates if any person is traveling than, firstly they will stop and look their left or right side, if all clear than go.
So, that' why this option is correct because it will reduce the chances of accidents.