What is the purpose of using high beam headlights?

Using high beam headlights serves the primary purpose of illuminating the road ahead at greater distances. High beams provide a much brighter and more focused beam of light compared to low beams, which enhances visibility in poorly lit areas, such as rural roads or highways devoid of streetlights. This increased visibility is crucial for spotting obstacles, pedestrians, or animals that may be on the roadway ahead, thereby improving overall safety while driving at night or in low-light conditions.

The other options, while related to headlights, do not accurately reflect the main function of high beam headlights. For instance, reducing glare for oncoming traffic is actually a function of low beam headlights, which are designed to provide sufficient illumination without overwhelming oncoming drivers. Similarly, energy saving isn't the intention of high beams; they typically consume more power than low beams due to their higher intensity. Finally, while being more visible can be beneficial in parking lots, regular headlights are typically adequate for that situation, thus this option does not align with the specific utility of high beams in improving long-distance visibility.