When might ABS fail?

Answer: A — On loose road conditions

ABS (anti-lock braking system) fails when the road conditions are loose or slippery. This happens because the system relies on friction between the tires and the road to function properly, and when there is less traction due to loose or slippery road conditions, it can cause the system to fail. Regular maintenance, perfect weather, and smooth roads do not significantly impact the functioning of ABS.