问题详情

Which of the following safety developments is NOT mentioned in the passage？
A．Windscreens that can help drivers to improve their vision.
B．Radars that can help drivers to see obstacles in fog.
C．Devices that can help drivers to see through big vehicles.
D．Improvements in seat belts, pedal controls and tyres.请帮忙给出正确答案和分析，谢谢！