You respond to a local lake where a diver complains of difficulty breathing that occurred immediately after rapidly ascending from a depth of approximately 30 feet. On assessment, you note that he has cyanosis around his lips and has pink froth coming from his nose and mouth. You should:.A. place him in a semi-sitting position, suction his mouth and nose, apply a continuous positive airway pressure (CPAP) device, and transport to the closest emergency department. B. suction his mouth and nose, keep him supine and elevate his legs to prevent air bubbles from entering his brain, administer high-flow oxygen, and transport to a hyperbaric chamber. C. suction his mouth and nose, apply high-flow oxygen, monitor the patient's breath sounds for a pneumothorax, and contact medical control regarding transport to a recompression facility. D. position him supine with his head elevated 30°, suction his mouth and nose, hyperventilate him with a bag-valve mask, and contact medical control for further guidance.