What is one reason a school bus driver might need to contact authorities immediately?

Answer: B — If they witness aggressive driving behavior

A school bus driver may need to contact authorities immediately if they witness aggressive driving behavior. Aggressive driving can pose significant safety risks to the children on the bus, other motorists, and pedestrians. By reporting such behavior, the driver helps prevent potential accidents or confrontations that could arise from reckless actions on the road. In contrast, while misbehavior among children, arriving late, or needing clarification on routes may warrant attention, these situations do not typically present immediate threats to safety. Misbehavior can be addressed through established disciplinary protocols, arriving late may affect scheduling but doesn’t endanger lives, and route clarification can often wait until the next appropriate moment. Therefore, witnessing aggressive driving stands out as an urgent situation that necessitates prompt action from the bus driver.