A 30-year-old man is brought to the emergency department after a high-speed motor vehicle collision. He is awake but confused. According to Advanced Trauma Life Support (ATLS) principles, what is the highest initial priority in his assessment?AObtaining a detailed history of the crashBPerforming a full neurological examinationCPrimary survey focusing on airway, breathing and circulationDOrdering a full-body CT scanEInsertion of a urinary catheterCheck my answer