What action should a driver take if a child drops something while exiting the bus?

Answer: B — Ask the child to stay by the bus and wait for a signal

A driver should ask the child to stay by the bus and wait for a signal before attempting to retrieve the dropped item. This action is crucial for ensuring the child's safety and the safety of other students. By instructing the child to remain at a safe distance from the bus, it helps to prevent accidents and allows the driver to maintain awareness of the surrounding environment. Waiting for a signal ensures that the driver has a clear line of sight and can confirm it is safe for the child to approach and get the item. This step is important in minimizing the risk of the child running into the street or other hazards that might not be visible to the driver. Encouraging immediate retrieval without ensuring safety can lead to dangerous situations, as children may not be aware of oncoming traffic or the bus's blind spots.