What is meant by the term "safety restraint systems" in driving?

The term "safety restraint systems" specifically refers to devices such as seatbelts and airbags that are designed to protect vehicle occupants during a crash or abrupt stop. These systems play a critical role in enhancing passenger safety by minimizing the risk of injury. Seatbelts secure occupants in their seats, preventing them from being thrown forward upon impact, while airbags deploy in various scenarios to cushion and shield occupants from colliding with hard surfaces within the vehicle.

The other options relate to vehicle functionality but do not directly address the protective measures for occupants during an accident. Fuel consumption devices focus on efficiency rather than safety; emergency braking systems assist with stopping the vehicle safely but do not directly restrain occupants; and exterior modifications for visibility enhance awareness on the road but do not contribute to occupant safety in a crash scenario.