Final answer:
The correct action for a school bus driver during a breakdown is to call for assistance and stay with the bus to ensure students' safety, rather than having students try to fix the issue, evacuating them unnecessarily, or leaving the bus unattended.
Step-by-step explanation:
If you are a school bus driver and there is a breakdown, the best course of action is to call for assistance and stay with the bus. Students should not be responsible for fixing the bus, due to safety concerns and potential lack of technical knowledge.
Evacuating the students immediately is not necessary unless there is an immediate danger to their safety. The best practice is to secure the vehicle, ensure the students' safety, and wait for professional help to arrive. Leaving the bus unattended could compromise student safety and is not recommended.