What should you avoid doing with an injured person in a wrecked vehicle?

The correct choice is to avoid attempting to move an injured person unless you have medical training or there is immediate danger. This is because moving an injured person can exacerbate their injuries, particularly if they have sustained spinal injuries or other serious trauma. In many cases, medical professionals are trained to extract individuals safely from vehicles, especially in situations where they have sustained serious injuries.

Staying with the individual until help arrives is typically the best course of action, as it provides companionship and reassures the injured person that help is on the way. Giving food or drink is generally not advisable because it can lead to complications if the person requires surgery or has a risk of choking. Leaving an injured person alone can increase their anxiety and is often not considerate of their needs, which is why it's important to ensure they have support until professionals arrive.