What is a potential danger of swinging the bus far to the left before making a right turn?

Swinging the bus far to the left before making a right turn poses significant risks. The most pertinent concern is that it can lead to side swiping a vehicle on the left. When a school bus, which is typically much larger and wider than standard vehicles, moves to the left before a right turn, it encroaches into the lane space of vehicles alongside it. This movement can lead to a collision with another vehicle, which might be traveling parallel or closely behind.

In urban or crowded environments, this maneuver can be particularly dangerous, as the bus might not only endanger other vehicles but also pedestrians who may be near the bus's path. Thus, the practice of swinging left prior to a right turn is counterproductive, as it increases the risk of accidents and safety hazards for everyone on the road.

The other choices do not adequately address the critical safety issue associated with turning maneuvers. For instance, stalling the bus is generally unrelated to the positioning of the vehicle before a turn, and while some might think swinging left could potentially aid in smoother turns or improve visibility, these techniques do not outweigh the significant risk of collisions.