This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
[{'content': 'Pneumonia alba is due to \nSelect and explain. \nA. Klebsiella, B. Streptococci, C. Treponema Pallidum, D. Staphylococci', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Pneumonia alba seen in neonates with congenital syphilis. Pneumonia alba (white pneumonia) is often seen in neonates with congenital syphilis. The lung may be firm and pale, owing to the presence of inflammatory cells and fibrosis in the alveolar septa. Spirochetes are readily demonstrable in tissue sections . Ref Davidson edition23rd pg 584', 'role': 'assistant'}]