What should you do if you encounter a school bus with its red lights flashing?

Answer: B — Stop and do not pass the bus until the lights are turned off

When you encounter a school bus with its red lights flashing, it is crucial to stop and remain stopped until the lights have turned off. This is implemented to ensure the safety of children boarding or disembarking from the bus, as they may unexpectedly enter the road. Buses use red flashing lights as a signal to other drivers that they are either picking up or dropping off students, which means children may be in the vicinity and could cross the road. Stopping provides a critical moment for children to safely move away from the bus or safely board it without the risk of being struck by a vehicle. Most states, including Texas, have strict laws regarding stopping for school buses, and failing to comply can result in substantial fines and penalties.