What is a critical action to take after ensuring safety in an accident?

After ensuring safety at the scene of an accident, calling for emergency assistance is a critical action that must be taken. This step is essential because it ensures that help is on the way for anyone who may be injured and that authorities are notified. Emergency responders can provide medical assistance, secure the scene, and begin an investigation if necessary.

By calling for emergency assistance, you are taking responsibility for the safety and well-being of all involved. This action also helps to establish a legal and official record of the incident, which can be important for insurance claims and any subsequent legal proceedings.

The other options do not address the immediate need for safety and assistance as effectively. Leaving the scene can create legal problems, negotiating with the other driver can lead to disputes that may complicate the situation, and waiting for others to arrive without calling for help prolongs the risk for those injured and can exacerbate the situation.