Answer:
Allow the vechile to pass you by
Explanation:
Your rear view mirror is important, it is an important feature of your car and it is a driving tool, it helps to identify and keep track of cars behind you and if a vehicle particular headlight is causing and obstruction for you and in your driving, it is better, you let such vehicle to pass you by than managing the scenario that can lead to a possible accident.
So therefore the best to let such car pass you by or you give way for the car to forge ahead for you to be free from such obstruction.