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': 'Mass immunization is indicated in the following, except- \nSelect and explain. \nA. Leprosy, B. Cholera, C. Influenza, D. Tuberculosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]