You are presented with the question "Anorexia can be caused by " and the following answer choices: 
- parasites
 - contamination
 - cigarettes
 - Leptospirosis
 - Smoking
 - Pesticides
 - heat or cold
 - acetic acid

Now knowing that roundworms may be free-living or parasitic and roundworms Can Cause Anorexia, choose the best answer.


 

 parasites        