New York Driver License (DMV) Written Practice Test

At night, visibility is decreased due to darkness which decreases the ability to see and be seen by other drivers. This is why it is necessary to use your headlights at night to help improve visibility and safety. Option A is incorrect because using headlights during the day is not necessary and can be potentially distracting to other drivers. Option C is also incorrect because it only refers to a specific time period, not the entire night. Option D is incorrect because headlights are essential for driving safely during times with low visibility, such as at night.