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: Microbiology
Which of the agent does not belong to category A bioterrorism? 
Select and explain. 
A. Anthrax, B. Botulism, C. Brucellosis, D. Plague
C: Brucellosis
Answer: C: Brucellosis 
Explanation: Brucellosis - category  - B bioterrorism