Final answer:
Smallpox, pneumonic plague, botulism, and tularemia are all potential bioterrorism agents. These diseases are caused by specific pathogens and can be transmitted through different routes.
Step-by-step explanation:
A.
Smallpox is caused by the Variola virus and can be transmitted through respiratory droplets or contact with infected material. It has a high mortality rate and was used as a bioterrorism agent in the past.
B.
Pneumonic plague is caused by the bacteria Yersinia pestis and can be transmitted through respiratory droplets. It has a high mortality rate if left untreated.
C.
Botulism is caused by the Clostridium botulinum toxin and can be acquired through contaminated food. It can cause paralysis and is a potential bioterrorism agent.
D.
Tularemia is caused by the Francisella tularensis bacteria and can be transmitted through insect bites, inhalation of contaminated aerosols, or contact with infected animals. It can cause flu-like symptoms and is considered a potential bioterrorism agent.