This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Viral action is differentiated from bacterial action by: 
Select and explain. 
A. Interferon production, B. Toxin production, C. Lymphocytes production, D. Neutrophils production
A: Interferon production
Answer: A: Interferon production 
Explanation: None