Final answer:
The correct answer is D~ 80%. Seatbelts reduce fatality risks in car accidents by approximately 80%, demonstrating their critical role in car safety. They are part of a comprehensive passive safety system that includes airbags.
Step-by-step explanation:
Fatality risks in accidents are significantly reduced when occupants wear seatbelts. The correct answer to the question of how much this risk is reduced is D~ 80%. Wearing seatbelts is one of the most effective ways to save lives and reduce injuries in the event of a car accident. Seatbelts work by distributing the forces of a crash over the stronger parts of the body like the chest and pelvis. They also keep the occupant inside the vehicle, preventing ejection, which is often fatal. They are part of a car's passive safety system, including other features like airbags, which provide protection without requiring any active decision or action from the occupants at the time of a crash.
According to various studies and statistics from road safety organizations, seatbelts can reduce the risk of a fatal injury to front-seat passenger car occupants by about 45%, and light-truck occupants by 60%. For the strongest protection in a crash, occupants should use both seatbelts and airbags as they are designed to work together.