Which of the following can help improve safety on a motorcycle?

Wearing reflective clothing significantly enhances safety for motorcyclists. This practice improves visibility to other road users, especially in low-light conditions or adverse weather. Bright and reflective materials catch the light from other vehicles, making it easier for drivers to see the motorcyclist from a greater distance, thereby reducing the likelihood of accidents.

By contrast, using a cell phone can distract the rider, leading to impaired focus and reaction time. Avoiding helmets increases the risk of severe head injuries in the event of an accident, while driving with no lights can make a motorcycle nearly invisible to other drivers, particularly at night or in poor weather, which can also lead to dangerous situations. Overall, wearing reflective clothing is a proactive measure that helps to enhance the rider's safety on the road.