<prompt> Which of the following is a Category A bioterrorism agent?CoxiellaBrucellaNipah virusBacillus anthracis  <response>: BIOTERRORISM AGENTS CDC Category A Anthrax Bacillus anthracis Botulism Clostridium botulinum toxin Plague Yersinia pestis Smallpox variola major Tularemia Francisellatularensis Viral haemorrhagic fever filovirus and arenavirus Category B Brucellosis Brucella species Clostridium perfringens epsilon toxinFood safety threats Salmonella species, E.coli O 157:H7, Shigella Glanders Burkholderia mallei Melioidosis Burkholderiapseudomallei Psittacosis Chlamydia psittaci Q fever Coxiella burnetii Ricin toxin from Ricinus communis castor beans Staphylococcal enterotoxin BTyphus fever Rickettsia prowazekii Viral encephalitis Equine encephalitis viruses Water safety threats e.g: Vibrio cholerae, cryptosporidium parvum Category C Emerging infectious diseases such as Nipah virus and hantavirus 