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': 'Rose-waaler test is \nSelect and explain. \nA. Precipitation test, B. Passive agglutination test, C. Neutralisation test, D. Complement fixation test', 'role': 'user'}, {'content': 'Answer: B \nExplanation: It is rapid slide haemagglutination test for detection of rheumatoid factor.', 'role': 'assistant'}]