Receptors which provide animals with information from the external environment are located in ears, tongue, eyes, and the nose. These are all receptors that can be found in our sensory organs and provide us with feedback from our nearby environment and the stimuli on which we should be alerted towards.
The correct answer is "p<span>ick up the gun by the edge of the grip and carefully remove it."
Before assessing the airway, breathing, and the circulation of the trauma patient; one should first survey the scene before performing basic life support. The gun is a potential harm in doing first aid for this patient as the patient's reflexes, involuntary hand movements, or spasms can accidentally pull the trigger and hurt more people. </span>