What conduct must you expect of children at zebra crossings?

You answered correctly. At zebra crossings, you must expect that children may behave unpredictably. This means they could suddenly run onto the crossing or even turn around and run back without warning. Children often have a limited ability to judge the speed and distance of vehicles, so you cannot assume they will act safely or wait at the curb. It's important to always be extra cautious and prepared to stop when children are near a zebra crossing, as their actions can be spontaneous and unexpected. This helps prevent accidents and ensures the safety of young pedestrians.