Which of the following provides the best protection in the event of a crash?

A full-face helmet provides the best protection in the event of a crash because it covers both the head and the face, reducing the risk of injury to critical areas such as the chin, jaw, and forehead. This type of helmet is designed with a solid structure that absorbs impact energy and helps protect the rider's head from debris and other hazards. In the event of an accident, the full-face design shields the rider from direct contact with the road or other objects, significantly lowering the chances of severe injuries, particularly to the face and head.

In contrast, other helmet types offer limited protection. A half helmet provides coverage to the top of the head but leaves the face and jaw vulnerable. No helmet poses obvious risks since it offers no protection at all, increasing the chance of serious injury. Beanie-style helmets, while small and lightweight, typically offer minimal protection compared to full-face helmets, lacking features such as reinforced chin and facial protection. Thus, the full-face helmet is the superior choice for safety and impact mitigation in a crash scenario.