Question

It is illegal to have __________ emergency lights on your vehicle.

A) Red and blue
B) Green and yellow
C) Red and yellow
D) Green and blue

Answer 1

The answer is a b c d.
It's illegal to have emergency lights, period :) even if its pink with green

Answer 2

Answer is A. Red and Blue

This because these are the same color of emergency lights that are used on Emergency vehicles like ambulances, police cars, fire trucks, etc. We wouldn't want normal citizens confusing drivers with police officers in case of an actual emergency.