Which action enhances safety when driving with motorcycles present?

Maintaining a greater following distance when driving with motorcycles present is crucial for enhancing safety. Motorcycles can accelerate and decelerate more quickly than larger vehicles, and their stopping distances can differ significantly, especially given their smaller size and different handling characteristics. By increasing the following distance, drivers have more time to react if the motorcycle suddenly slows down, falls over, or encounters a hazard. This buffer is essential to prevent collisions and ensure safe maneuvering around motorcyclists.

The other options do not contribute effectively to safety. For instance, using high-beams at all times can blind not only motorcyclists but also other drivers, particularly at night, creating dangerous conditions. Horn signaling frequently could distract other road users or provoke an aggressive response, compromising safety. Driving at high speeds reduces reaction time and increases the severity of any potential accidents, particularly with vulnerable road users like motorcyclists who may be less visible and less protected than car occupants. Thus, maintaining a greater following distance is the most appropriate and effective way to enhance safety around motorcycles.