What is the single biggest cause of crashes?

• A. Weather and road conditions.
• B. Fatigue.
• C. Drivers running into something they can't see.
• D. Distractions.

Answer: (C)

Seeing hazards in time is the most crucial skill for avoiding crashes. The idea behind the correct choice is that when a driver doesn’t notice something ahead—fails to see a hazard until it’s too late there’s no chance to react in time, and a crash occurs. This is why habitually scanning the road ahead, checking mirrors, and anticipating what other road users might do is so important. Weather, fatigue, and distractions all raise risk, but they don’t by themselves explain crashes the way not perceiving hazards does. So, prioritize improving your hazard perception: look far ahead, keep your eyes moving, use a systematic search pattern, and maintain a safe following distance to give yourself time to react if something appears suddenly.