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': 'Non typable strains of H. influenzae all are true except \nSelect and explain. \nA. Most commonly affects adults, B. Non capsulated, C. Often causes meningitides, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]