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