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
Virus most sensitive to inactivation by biocides ? 
Select and explain. 
A. Adenovirus, B. Herpes virus, C. Parvovirus, D. Poliovirus
B: Herpes virus
Answer: B: Herpes virus 
Explanation: Ans. is 'b' i.e., Herpes virus Enveloped viruses are most sensitive to inactivation by biocides. Among the given options only Herpesvirus is enveloped virus. Adenovirus, parvovirus and poliovirus (picornavirus) are non-enveloped viruses.