What could cause a fast travelling motor vehicle suddenly to veer sideways on a dry straight road?

The selected combination is correct because both a sudden gust of strong side wind and a burst tyre can significantly affect a vehicle's stability.

According to German traffic regulations, a driver must maintain control of their vehicle at all times. A strong side wind can push the vehicle sideways, while a burst tyre can result in a loss of traction and control. Both situations can lead to dangerous driving conditions, making it essential for drivers to be aware of these factors to react appropriately.

Recognizing all relevant scenarios is crucial, as it helps drivers anticipate potential hazards and respond effectively, ensuring safety on the road.