Many governments have passed laws requiring that bicyclists must wear helmets while riding. Most of these laws in the United States only apply to children; however, there are some jurisdictions, such as Australia, that have laws mandating helmet usage for adults as well. While these laws are intended to reduce the incidence of injuries, some bicycle safety advocates argue that they should be repealed because they can, in some circumstances, have the contrary effect.

Which of the following, if true, most helps to explain the position of the bicycle safety advocates?


A. Classes that teach safe bicycling behaviors have been shown to be a more effective method of reducing injuries than are laws requiring helmets.

B. A driver overtaking a cyclist who is not wearing a helmet is more likely to pass at a safe distance than if the cyclist were wearing a helmet.

C. Bicycle helmet laws have been shown to discourage people from bicycling.

D. Children are more vulnerable to head injuries while bicycling than are adults.

E. In some severe bicycle crashes, a helmet may not prevent traumatic brain injury.