You are answering a USMLE-style medical question. Question: A 37-year-old man comes to the emergency department with the chief complaint of a high fever for several days. In addition to the fever, he has had malaise, chest pain, and a dry cough. He recently went on vacation to South America but has returned to his job delivering packages. He has several friends who recently had influenza. Hi temperature is 102.8°F (39.3 °C), blood pressure is 137/80 mmHg, pulse is 104/min, respirations are 19/min, and oxygen saturation is 98%. Chest exam reveals a deep noise found bilaterally in the lung bases. Chest radiograph reveals a wider area of opacity near the heart and bilateral lung infiltrates. Which of the following is characteristic of the most likely organism responsible for this patient's symptoms? Options: A) Cultured on charcoal and yeast B) D-glutamate capsule C) Found in desert sand D) Polyribosyl-ribitol-phosphate capsule Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.