If we are involved in an accident with injured people, after protecting and notifying, what should we do?

A)Do not move the injured until an emergency service arrives and do not alter the state of things.Correct
B)Quickly transport the injured to the nearest hospital.
C)Perform cardiac massage of 2 ventilations per 30 compressions.
In an accident we must not alter the state of the victims or of the vehicles, except when not doing so would be dangerous for the injured or for traffic. If you do not have basic first-aid knowledge and there is no risk for the victims, it is best not to handle them in order to avoid more serious harm, such as spinal injuries.