This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
Microorganism used as weapon in biological terrorism 
Select and explain. 
A. Small pox Virus, B. Rabies Virus, C. Herpes Virus, D. Influenza C Virus
A: Small pox Virus
Answer: A: Small pox Virus 
Explanation: * Bioterrorism agents -variola (Smallpox), F. tularensis, bacilli anthracis, Clostridium botulinum,Y.pestis, Ebola virus