What is the maximum waiting period at a zebra line for vehicles?

Answer: A — Till people cross the line.

The maximum waiting period at a zebra line for vehicles is determined by the necessity to ensure pedestrians can cross safely. When a vehicle approaches a zebra crossing, the law mandates that the driver must yield to pedestrians waiting to cross or already on the crossing. Therefore, a vehicle must wait until the pedestrians have completely crossed the line before proceeding. This rule is in place to prioritize the safety of pedestrians and to enforce the right of way at designated crossing points. By adhering to this waiting period, drivers help prevent accidents and create a safer environment for everyone on the road.