What is the effect of an automatic anti-locking device (ABS)?

You answered correctly. ABS (Anti-lock Braking System) helps the vehicle maintain the best possible braking on surfaces like wet roads and allows you to keep steering control while braking hard. However, ABS does not prevent aquaplaning; if the tires lose contact with the road due to a water film, ABS cannot help. This is why only the first two answers are correct. Remember: ABS improves steering and braking safety, especially in emergencies, but it cannot eliminate all risks, such as aquaplaning.