What does wearing a seat belt do for passengers?

Answer: C — Decreases the likelihood of injury

Wearing a seat belt significantly decreases the likelihood of injury for passengers in a vehicle. Seat belts are designed to restrain occupants during a sudden stop or collision, preventing them from being ejected from the vehicle or colliding with the interior surfaces, which can lead to severe injuries. According to safety studies, seat belts have been shown to reduce the risk of fatal injury for front-seat passengers by about 45% and the risk of moderate to critical injuries by 50%. This protective measure ensures that all passengers remain securely in their seats, allowing safety features of the vehicle, such as airbags, to function effectively. In summary, the function of a seat belt is vital for enhancing passenger safety and minimizing the chance of injury during an accident.