You are answering a USMLE-style medical question. Question: A 56-year-old man is brought to the emergency room after a motor vehicle accident. The patient’s vitals are as follows: blood pressure 80/40 mm Hg, heart rate 111/min, respiratory rate 39/min, and temperature 37.1°C (98.8℉). On physical examination, the patient is unconscious with a GCS of 9/15 and is cyanotic. There are open fractures of the left femur and left tibia, a likely shoulder dislocation, multiple contusions on the limbs and thorax, and a puncture wound on the left side of his chest. There are no breath sounds on the left side and there is hyperresonance to percussion on the left. Preparations are made for an emergency needle thoracostomy to be performed to treat this patient’s likely tension pneumothorax. Which one of the following is the best choice to provide informed consent for this procedure? Options: A) The patient’s closest relatives (spouse, child or parent), who must be brought to the hospital as fast as possible B) One of the witnesses at the scene of the car accident, who should be brought to the hospital as fast as possible C) The hospital ethics committee D) Informed consent is not needed in this case Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.