What is true about fatalities from vehicle crashes in the U.S.?

The assertion that fatalities from vehicle crashes in the U.S. include both vehicle occupants and vulnerable road users is accurate. This encompasses individuals inside vehicles as well as those outside, such as pedestrians, cyclists, and motorcyclists, who are particularly susceptible to severe injuries or fatalities in collisions. The recognition of this broad definition is important for understanding the full scope of traffic-related safety issues and the impact of vehicle crashes on all road users, not just those within vehicles.

In contrast, the other options provide a more limited or skewed view. While it is true that vehicle occupants often account for a significant portion of fatalities, focusing solely on them overlooks the critical risks faced by pedestrians and other vulnerable road users. Therefore, the comprehensive nature of the correct answer allows for a more accurate assessment of road safety and the need for protective measures for all individuals interacting with the road system.