If your bus gets stopped on a railway crossing, the first thing to do is...?

Answer: C — Get everyone out and away from the vehicle

The first thing to do if your bus gets stopped on a railway crossing is to get everyone out and away from the vehicle. This is because attempting to start the bus immediately or calling for help could put everyone in danger if a train is approaching. Waiting for the train to pass may seem like a logical option, but it is important to prioritize the safety of all passengers and get them to a safe distance from the vehicle first.