You are presented with the question "Many believe the cause of smallpox to be what?" and the following answer choices: 
- fever
 - negative
 - contamination
 - Allergies
 - Nonliving
 - heat or cold
 - dangerous
 - Leptospirosis

Now knowing that viruses are usually considered to be nonliving and variola major, the virus that causes smallpox, is considered a potential bioterrorism agent, choose the best answer.


 

     Nonliving    