You are presented with the question "Pathogens can cause what?" and the following answer choices: 
- smallpox
 - symptoms
 - killing insects
 - type 1 diabetes
 - a broken arm
 - Legionnaires'
 - plantar fasciitis
 - influenza

Now knowing that pathogens can cause disease and legionnaires' disease is a serious disease, choose the best answer.


 

      Legionnaires'   