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': 'Tuberculin test screens for \nSelect and explain. \nA. Humoral immunity, B. Cell mediated immunity, C. Complement function, D. Phagocyte dysfunction', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]