This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Viral Infections, Subject name: Pediatrics
Which of the following does not causes pneumonia? 
Select and explain. 
A. Mumps, B. Measles, C. RSV, D. Influenza
A: Mumps
Answer: A: Mumps 
Explanation: ANSWER: (A) MumpsREF: Nelson's 18th ed p. 1795"Pneumonia is known complication of measles"Viruses commonly causing pneumonia in childrenRSVInfluenzaAdenovirusRhinovirusPara influenza virus