What might be the effect of sand scattered on the road?

1. Correct answer: Vehicle skidding, due to reduced friction between the tires and the road.
2. Tire overheating, due to increased friction between the tires and the road.
3. Better braking force, due to increased friction between the tires and the road.
4. It might conceal important road signs.

WhySand reduces tire grip on the road, and the car may skid. Braking on sand is worse, not better.