Fact 1: Viruses cannot reproduce by themselves.

Fact 2: Influenza Virus Influenza viruses make up the family Orthomyxoviridae.

Given the two facts above, answer the question "What cannot reproduce by itself?" with the following options: 
- Leptospirosis
 - cigarettes
 - acetic acid
 - influenza
 - Acids
 - bacteria
 - anemia
 - fungi


 

    influenza     