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Final answer:To manage theairwayof a severely injured person, it is recommended to insert a nasopharyngeal airway and provide suction and assisted ventilations. In the event of heart stoppage, cardiopulmonary resuscitation(CPR)could be applied. It is essential to maintain patient stability while preventing further damage.Explanation:In severe headtraumacases accompanied by unconsciousness and difficulty in breathing like this, the primary aim is to keep the patient's airway open and ensure constant ventilation to prevent hypoxia. In this situation, the best option would be A. Insert a nasopharyngeal airway and provide suction and assisted ventilations. For this process, an endotracheal tube can be employed which maintains an open airway by sealing it off from the oropharynx after careful insertion into the trachea.In case the patient's heart stops, it might be necessary to apply an emergency technique known ascardiopulmonary resuscitation (CPR)to pump some blood into the pulmonary and systemic circuits. Under such conditions, the emphasis is on performing high-quality chest compressions without necessarily providing artificial respiration.These procedures can be complemented with other professional medical interventions tailored to the specific post-crash condition of the patient. It is critical to keep the patient stable while preventing any further damage, such as irreversible damage to the brain, which could result from loss of blood flow.Learn more aboutAirway Managementhere:brainly.com/question/34697661#SPJ11...