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: Pathology
[{'content': '"Pneumonia Alba" is caused by: \nSelect and explain. \nA. Streptococcus, B. Pneumococcus, C. Treponema, D. Staphylococcus', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Treponema', 'role': 'assistant'}]