What can reduce the risk of serious accidents when turning right within a built-up area?

You answered correctly. The risk of serious accidents, especially with cyclists and pedestrians, can be reduced when turning right within a built-up area by equipping vehicles with turn assist systems and by driving at walking speed when making the turn. Turn assist systems help detect other road users in blind spots, while reducing speed allows more time to react to unexpected situations. Turning quickly is not safe, as it increases the risk of overlooking vulnerable road users. Remember to always turn right slowly and remain alert, especially in city areas.