This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
Envelope of this virus doesn't contains neither hemagglutinin nor neuraminidase 
Select and explain. 
A. Mumps, B. Para influenza, C. Respiratory syncytial virus, D. Measles virus
C: Respiratory syncytial virus
Answer: C: Respiratory syncytial virus 
Explanation: Respiratory syncytial virus-contains no neuraminidase nor hemagglutinin but contain F protein Measles-paramyxo but no neuraminidase Envelope has F protein Ref: Baveja 5th ed Pg: 478