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': 'All of the following are most important and potential agents which can be used for Bio-terrorism except \nSelect and explain. \nA. Tuberculosis, B. Smallpox, C. Plague, D. Botulism', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Category A - Can be easily disseminated, High mortality rates, Public panic and disruption.\nCategory B - Moderately easy to disseminate, Moderate morbidity + low mortality, Require enhanced diagnostic capacity, Require enhanced surveillance.\nCategory C - Emerging pathogens, Available, Ease of production, High morbidity and mortality.', 'role': 'assistant'}]