When approaching another vehicle from the rear at night, you must dim your high beam headlights when you are within choose an
a. 100 feet of the other vehicle.
b. 200 feet of the other vehicle.
c. 300 feet of the other vehicle.?

Answer C is the correct choice. Driving at night can be very dangerous  because your vision, including color recognition, reaction time and peripheral vision become severely impaired therefore, using your lights becomes necessary for your safety and that of other drivers.

At he same time, using your lights at night can be very dangerous for other drivers as well, specially those coming in the opposite direction. There is a risk of blinding them with your high beams so it is recommendable that you switch to low beams headlights within 500 feet of any approaching vehicle and at least 300 feet of any vehicle you are following.

The distance can vary from State to State but this is usually the recommended average distance.    

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