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: Medicine
[{'content': 'In mycoplasma pneumonia, following are seen except- \nSelect and explain. \nA. Diffuse infiltration of lungs, B. Cannot be cultured routinely, C. Best treatment by cefotaxime, D. Serology is useful in diagnosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]