Passengers leaving a school bus should only cross in front of the bus at a distance of at least...?

Answer: A — 3 m

Passengers leaving a school bus should cross in front of the bus at a minimum distance of 3 meters. This distance is critical for ensuring safety because it allows the bus driver and other motorists a clear line of sight of the child. When crossing in front of the bus, it is vital for children to be far enough away to help avoid the risk of being in the driver's blind spot, which could lead to dangerous situations. By maintaining this recommended distance of 3 meters, it enhances visibility and gives the passenger enough time to assess oncoming traffic and safely determine when it's clear to cross.