You are answering a USMLE-style medical question. Question: A 58-year-old male is hospitalized after sustaining multiple fractures in a severe automobile accident. Soon after hospitalization, he develops respiratory distress with crackles present bilaterally on physical examination. The patient does not respond to mechanical ventilation and 100% oxygen and quickly dies due to respiratory insufficiency. Autopsy reveals heavy, red lungs and histology is shown in Image A. Which of the following is most likely to have been present in this patient shortly before death: Options: A) Diaphragmatic hypertrophy B) Interstitial edema C) Large pulmonary embolus D) Left apical bronchoalveolar carcinoma Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.