When driving on the highway at night, you should use low beam headlights (dim lights) when: When driving on the highway at night, you should use low beam headlights (dim lights) when:

• A. another driver dims his lights
• B. blinded by the headlights of an approaching vehicle
• C. all of the above
•  

  The correct answer is C

   

  Part of common road courtesy is to dim your lights when you see another driver blinded by your headlights. If they dim their headlight it means they are dazzled by yours so dim your headlights, too.