If your vehicle's brakes become wet, you should be aware that...

Why this is the correct answer

When brakes get wet (e.g. after driving through a flooded stretch of road or under heavy rain), water forms a thin film between the brake pads and the discs (or shoes and drums). This significantly reduces friction, which means braking force decreases — and in some cases, the brakes may temporarily fail to work at all. This is a TEMPORARY effect: the brakes are not damaged. To restore braking effectiveness, gently and repeatedly press the brake pedal while driving at low speed. The heat generated by the friction between the pads and discs will evaporate the moisture and the brakes will return to normal. Option A is wrong because wet brakes increase stopping distance, not decrease it. Option C is wrong because getting wet does not permanently damage the brakes or require pad replacement.