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: Social & Preventive Medicine
[{'content': 'Chronic carrier is seen in- \nSelect and explain. \nA. Measles, B. Whooping cough, C. Typhoid, D. None', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Typhoid o Chronic carriers are seen in typhoid fever, hepatitis B, dysentery, meningitis, malaria, gonorrhea and diphtheria.", 'role': 'assistant'}]