You approach an 'emu' children's crossing with red and white posts and children-crossing flags displayed. A child is about to step onto the crossing. What must you do?

Correct answer: Stop, and do not proceed until no pedestrian or bicycle rider is on or entering the crossing

An emu crossing operates when the children-crossing flags are displayed. You must stop when any pedestrian or bicycle rider is on or entering the crossing and remain stopped until the crossing is clear.

Source: Service SA – The Driver's Handbook