Answer :
B. 500ft. If you are driving at night with high beams on you must dim them within 500 feet of an oncoming vehicle.
Answer:
500 ft
Explanation: One must dim their high-beam lights when the oncoming vehicle is 500 ft away so that the oncoming driver can look clearly and drive safely. High beam light should be used at night to drive safely when one is not able to see ahead of the road clearly. Even for the most experienced drivers low visibility is an issue.