What does a bus's "stop" sign indicate to other drivers?

Answer: B — That they must stop for loading and unloading passengers

The bus's "stop" sign clearly indicates to other drivers that they must come to a complete stop in order to allow for the safe loading and unloading of passengers. This is critical for ensuring the safety of children and other passengers who may be boarding or exiting the bus. The law is designed to protect those who are getting on or off the bus, providing them with a secure environment free from vehicle traffic. Other drivers are expected to remain stopped until the bus's sign is no longer extended, which signals that it's safe to proceed. This law helps to prevent accidents and ensures that everyone using the bus has the safest possible experience. Understanding and adhering to this signal is an essential part of responsible driving around school buses and ensures compliance with traffic regulations designed to prioritize passenger safety.