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: Microbiology
[{'content': 'Neill-Mooser reaction is used to diagnose- \nSelect and explain. \nA. Rickettsiae, B. Chlamydiae, C. Mycoplasma, D. Herpes', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]