This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
[{'content': 'Bulging fissures in lungs is seen in – \nSelect and explain. \nA. Klebsiella pneumonia, B. Staph pneumonia, C. Pulmonary oedema, D. Pneumoconiosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The most important cause of bulging fissure is klebsiella pneumonia. Other causes are legionella pneumonia, streptococcal pneumonia, TB, Yersinia pestis, lung abscess, carcinoma bronchus', 'role': 'assistant'}]