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': 'Which amongst the following biological agents has the least potential for use as a biological weapon for microbial bio-terrorism? \nSelect and explain. \nA. Plague (Yersinia Pestis), B. Small Pox (Variola Major), C. Botulism (CI. Botulinum), D. Brucellosis (Brucella spp)', 'role': 'user'}, {'content': "Answer: D \nExplanation: Brucella spp, comes under the Category B agents used in bioterrorism which has moderate morbidity rates and low moality rates as compared to the other agents shown above which are Category A agents and responsible for high moality rates. Ref: Harrison's Principles of Internal Medicine, 16th edition, Page 1279.", 'role': 'assistant'}]