Question

your answer is required. single choice you are the first to arrive at the scene of a crash, and there is an injured person. the first thing you should do is? summon help or send someone for help if you can apply first aid to the injured person move the crashed vehicles off the road

Explanation:

In a crash scene with an injured person, summoning help (like calling emergency services) is crucial as professional medical aid is often needed. Applying first aid might be done after ensuring help is on the way (if one has the skills), but getting professional help is a priority. Moving crashed vehicles off the road is not the first step when there is an injured person - the focus should be on getting help for the injured.

Answer:

Summon help or send someone for help if you can.