What is considered a safe distance for a bus's front wheels when making a right turn?

The correct answer reflects the safe distance a bus's front wheels should maintain from the curb when making a right turn. This distance, at least 1-2 meters from the curb, ensures that the bus has adequate clearance from parked vehicles, pedestrians, and any obstacles that might be present near the curb. Maintaining this distance helps in preventing accidents and allows for better maneuverability, especially considering that buses are larger and wider than standard vehicles.

The choice of at least 1-2 meters allows for the necessary room to navigate without risking hitting the curb or other nearby objects. Given the size of a bus, this safe distance is crucial to ensure that the turn can be executed smoothly and safely. It also gives time for other road users to react and maintain a safe distance from the bus while it is making the turn.

While other options suggest different distances, they either reduce the margin for safety or are unnecessarily excessive, thus not providing the optimal distance for the specific scenario of a right turn with a bus.