Final answer:
When arriving at a motor vehicle accident scene, the first concern should be ensuring your own safety.
Step-by-step explanation:
When you arrive at a scene of a motor vehicle accident, your first concern must be to ensure your own safety. Your safety should always be the top priority, as you cannot help others if you are injured or in danger. Once you are in a safe position, then you can proceed to protect the scene from oncoming traffic, gain access to victims, and secure and stabilize the vehicles involved.